diff --git a/ext/di/injectable.c b/ext/di/injectable.c
index 1197fe97f46..d0b305b8c3d 100644
--- a/ext/di/injectable.c
+++ b/ext/di/injectable.c
@@ -182,7 +182,7 @@ PHP_METHOD(Phalcon_DI_Injectable, __get){
 		ZVAL_STRING(service, "sessionBag", 1);
 
 		phalcon_return_call_method_p2(dependency_injector, "get", service, arguments);
-		phalcon_update_property_this(this_ptr, SL("persistent"), (return_value_ptr ? *return_value_ptr : return_value) TSRMLS_CC);
+		zend_update_property(phalcon_di_injectable_ce, getThis(), SL("persistent"), (return_value_ptr ? *return_value_ptr : return_value) TSRMLS_CC);
 		RETURN_MM();
 	}
 
diff --git a/ext/session/bag.c b/ext/session/bag.c
index 82a9b1eb2d9..dc5a59643ab 100644
--- a/ext/session/bag.c
+++ b/ext/session/bag.c
@@ -62,7 +62,7 @@ PHALCON_INIT_CLASS(Phalcon_Session_Bag){
 	zend_declare_property_null(phalcon_session_bag_ce, SL("_dependencyInjector"), ZEND_ACC_PROTECTED TSRMLS_CC);
 	zend_declare_property_null(phalcon_session_bag_ce, SL("_name"), ZEND_ACC_PROTECTED TSRMLS_CC);
 	zend_declare_property_null(phalcon_session_bag_ce, SL("_data"), ZEND_ACC_PROTECTED TSRMLS_CC);
-	zend_declare_property_bool(phalcon_session_bag_ce, SL("_initalized"), 0, ZEND_ACC_PROTECTED TSRMLS_CC);
+	zend_declare_property_bool(phalcon_session_bag_ce, SL("_initialized"), 0, ZEND_ACC_PROTECTED TSRMLS_CC);
 	zend_declare_property_null(phalcon_session_bag_ce, SL("_session"), ZEND_ACC_PROTECTED TSRMLS_CC);
 
 	zend_class_implements(phalcon_session_bag_ce TSRMLS_CC, 2, phalcon_di_injectionawareinterface_ce, phalcon_session_baginterface_ce);
@@ -77,16 +77,11 @@ PHALCON_INIT_CLASS(Phalcon_Session_Bag){
  */
 PHP_METHOD(Phalcon_Session_Bag, __construct){
 
-	zval *name;
+	zval **name;
 
-	phalcon_fetch_params(0, 1, 0, &name);
-	
-	if (Z_TYPE_P(name) != IS_STRING) {
-		PHALCON_THROW_EXCEPTION_STRW(phalcon_session_exception_ce, "The name parameter must be a string");
-		return;
-	}
-	phalcon_update_property_this(this_ptr, SL("_name"), name TSRMLS_CC);
-	
+	phalcon_fetch_params_ex(1, 0, &name);
+	PHALCON_ENSURE_IS_STRING(name);
+	phalcon_update_property_this(this_ptr, SL("_name"), *name TSRMLS_CC);
 }
 
 /**
@@ -161,7 +156,7 @@ PHP_METHOD(Phalcon_Session_Bag, initialize){
 	}
 	
 	phalcon_update_property_this(this_ptr, SL("_data"), data TSRMLS_CC);
-	phalcon_update_property_bool(this_ptr, SL("_initalized"), 1 TSRMLS_CC);
+	phalcon_update_property_bool(this_ptr, SL("_initialized"), 1 TSRMLS_CC);
 	
 	PHALCON_MM_RESTORE();
 }
@@ -175,13 +170,13 @@ PHP_METHOD(Phalcon_Session_Bag, initialize){
  */
 PHP_METHOD(Phalcon_Session_Bag, destroy){
 
-	zval *initalized, *name, *session;
+	zval *initialized, *name, *session;
 
 	PHALCON_MM_GROW();
 
-	PHALCON_OBS_VAR(initalized);
-	phalcon_read_property_this(&initalized, this_ptr, SL("_initalized"), PH_NOISY_CC);
-	if (PHALCON_IS_FALSE(initalized)) {
+	PHALCON_OBS_VAR(initialized);
+	phalcon_read_property_this(&initialized, this_ptr, SL("_initialized"), PH_NOISY_CC);
+	if (PHALCON_IS_FALSE(initialized)) {
 		phalcon_call_method_noret(this_ptr, "initialize");
 	}
 	
@@ -207,16 +202,16 @@ PHP_METHOD(Phalcon_Session_Bag, destroy){
  */
 PHP_METHOD(Phalcon_Session_Bag, set){
 
-	zval *property, *value, *initalized, *name, *data;
+	zval *property, *value, *initialized, *name, *data;
 	zval *session;
 
 	PHALCON_MM_GROW();
 
 	phalcon_fetch_params(1, 2, 0, &property, &value);
 	
-	PHALCON_OBS_VAR(initalized);
-	phalcon_read_property_this(&initalized, this_ptr, SL("_initalized"), PH_NOISY_CC);
-	if (PHALCON_IS_FALSE(initalized)) {
+	PHALCON_OBS_VAR(initialized);
+	phalcon_read_property_this(&initialized, this_ptr, SL("_initialized"), PH_NOISY_CC);
+	if (PHALCON_IS_FALSE(initialized)) {
 		phalcon_call_method_noret(this_ptr, "initialize");
 	}
 	
@@ -261,7 +256,7 @@ PHALCON_DOC_METHOD(Phalcon_Session_Bag, __set);
  */
 PHP_METHOD(Phalcon_Session_Bag, get){
 
-	zval *property, *default_value = NULL, *initalized;
+	zval *property, *default_value = NULL, *initialized;
 	zval *data, *value;
 
 	PHALCON_MM_GROW();
@@ -275,9 +270,9 @@ PHP_METHOD(Phalcon_Session_Bag, get){
 	/** 
 	 * Check first if the bag is initialized
 	 */
-	PHALCON_OBS_VAR(initalized);
-	phalcon_read_property_this(&initalized, this_ptr, SL("_initalized"), PH_NOISY_CC);
-	if (PHALCON_IS_FALSE(initalized)) {
+	PHALCON_OBS_VAR(initialized);
+	phalcon_read_property_this(&initialized, this_ptr, SL("_initialized"), PH_NOISY_CC);
+	if (PHALCON_IS_FALSE(initialized)) {
 		phalcon_call_method_noret(this_ptr, "initialize");
 	}
 	
@@ -323,15 +318,15 @@ PHALCON_DOC_METHOD(Phalcon_Session_Bag, __get);
  */
 PHP_METHOD(Phalcon_Session_Bag, has){
 
-	zval *property, *initalized, *data;
+	zval *property, *initialized, *data;
 
 	PHALCON_MM_GROW();
 
 	phalcon_fetch_params(1, 1, 0, &property);
 	
-	PHALCON_OBS_VAR(initalized);
-	phalcon_read_property_this(&initalized, this_ptr, SL("_initalized"), PH_NOISY_CC);
-	if (PHALCON_IS_FALSE(initalized)) {
+	PHALCON_OBS_VAR(initialized);
+	phalcon_read_property_this(&initialized, this_ptr, SL("_initialized"), PH_NOISY_CC);
+	if (PHALCON_IS_FALSE(initialized)) {
 		phalcon_call_method_noret(this_ptr, "initialize");
 	}
 	
@@ -370,11 +365,18 @@ PHALCON_DOC_METHOD(Phalcon_Session_Bag, __isset);
 PHP_METHOD(Phalcon_Session_Bag, remove){
 
 	zval *property, *data = NULL, *name, *session;
+	zval *initialized;
 
 	PHALCON_MM_GROW();
 
 	phalcon_fetch_params(1, 1, 0, &property);
-	
+
+	PHALCON_OBS_VAR(initialized);
+	phalcon_read_property_this(&initialized, this_ptr, SL("_initialized"), PH_NOISY_CC);
+	if (PHALCON_IS_FALSE(initialized)) {
+		phalcon_call_method_noret(this_ptr, "initialize");
+	}
+
 	PHALCON_OBS_VAR(data);
 	phalcon_read_property_this(&data, this_ptr, SL("_data"), PH_NOISY_CC);
 	if (phalcon_array_isset(data, property)) {
diff --git a/ext/tests/issue-1637.phpt b/ext/tests/issue-1637.phpt
new file mode 100644
index 00000000000..fcafac0a066
--- /dev/null
+++ b/ext/tests/issue-1637.phpt
@@ -0,0 +1,120 @@
+--TEST--
+Cannot Remove A Property From Phalcon Persistent Storage - https://github.com/phalcon/cphalcon/issues/1637
+--SKIPIF--
+<?php include('skipif.inc'); ?>
+--GET--
+dummy=1
+--FILE--
+<?php
+
+class Test extends \Phalcon\Di\Injectable
+{
+	public function test()
+	{
+		$this->persistent->destroy();
+		$this->dump('anu');
+		echo "Set\n";
+		$this->persistent->anu = 'Aloha';
+		$this->dump('anu');
+		echo "Remove\n";
+		$this->persistent->remove('anu');
+		$this->dump('anu');
+		echo "set\n";
+		$this->persistent->anu = 'Aloha';
+		$this->dump('anu');
+		echo "assign null\n";
+		$this->persistent->anu = null;
+		$this->dump('anu');
+		echo "set\n";
+		$this->persistent->anu = 'Aloha';
+		$this->dump('anu');
+		echo "destroy\n";
+		$this->persistent->destroy();
+		$this->dump('anu');
+	}
+
+	public function dump($v)
+	{
+		echo $v, '=', var_dump($this->persistent->$v);
+		echo 'has(', $v, ')=', var_dump($this->persistent->has($v));
+		echo 'isset(', $v, ')=', var_dump(isset($this->persistent->$v));
+		echo PHP_EOL;
+	}
+}
+
+$di = new \Phalcon\DI\FactoryDefault();
+$di['session'] = function() { $s = new \Phalcon\Session\Adapter\Files(array('uniqueId' => 'issue-1575')); $s->start(); return $s; };
+
+$test = new Test();
+$test->test();
+
+?>
+--EXPECT--
+anu=NULL
+has(anu)=bool(false)
+isset(anu)=bool(false)
+
+Set
+anu=string(5) "Aloha"
+has(anu)=bool(true)
+isset(anu)=bool(true)
+
+Remove
+anu=NULL
+has(anu)=bool(false)
+isset(anu)=bool(false)
+
+set
+anu=string(5) "Aloha"
+has(anu)=bool(true)
+isset(anu)=bool(true)
+
+assign null
+anu=NULL
+has(anu)=bool(true)
+isset(anu)=bool(true)
+
+set
+anu=string(5) "Aloha"
+has(anu)=bool(true)
+isset(anu)=bool(true)
+
+destroy
+anu=string(5) "Aloha"
+has(anu)=bool(true)
+isset(anu)=bool(true)
+
+anu=string(5) "Aloha"
+has(anu)=bool(true)
+isset(anu)=bool(true)
+
+Set
+anu=string(5) "Aloha"
+has(anu)=bool(true)
+isset(anu)=bool(true)
+
+Remove
+anu=NULL
+has(anu)=bool(false)
+isset(anu)=bool(false)
+
+set
+anu=string(5) "Aloha"
+has(anu)=bool(true)
+isset(anu)=bool(true)
+
+assign null
+anu=NULL
+has(anu)=bool(true)
+isset(anu)=bool(true)
+
+set
+anu=string(5) "Aloha"
+has(anu)=bool(true)
+isset(anu)=bool(true)
+
+destroy
+anu=string(5) "Aloha"
+has(anu)=bool(true)
+isset(anu)=bool(true)
+