diff --git a/src/helpers.js b/src/helpers.js
index d1cddd3..93a5498 100644
--- a/src/helpers.js
+++ b/src/helpers.js
@@ -574,7 +574,7 @@ export function splice(array, startIndex, nb, ...elements) {
     nb = array.length - startIndex;
   else if (nb === null)
     nb = 0;
-  else if (Number.isNaN(Number.parseInt(nb)))
+  else if (Number.isNaN(Number.parseInt(nb, 10)))
     throw new Error(`argument nb ${nb} can not be parsed into a number!`);
   nb = Math.max(0, nb);
 
diff --git a/src/type.js b/src/type.js
index 98b8978..1891521 100644
--- a/src/type.js
+++ b/src/type.js
@@ -114,7 +114,7 @@ type.primitive = function(target) {
 type.splicer = function(target) {
   if (!type.array(target) || target.length < 1)
     return false;
-  if(target.length > 1 && Number.isNaN(Number.parseInt(target[1])))
+  if (target.length > 1 && Number.isNaN(Number.parseInt(target[1], 10)))
     return false;
 
   return anyOf(target[0], ['number', 'function', 'object']);
diff --git a/test/suites/helpers.js b/test/suites/helpers.js
index 8c1e16d..fa476ed 100644
--- a/test/suites/helpers.js
+++ b/test/suites/helpers.js
@@ -238,11 +238,11 @@ describe('Helpers', function() {
       it('should throw an error when supplying an argument for nb (deleteCount) which is not parseable as number', function () {
         const array = [0, 1, 2, 3, 4];
 
-        assert.throws(function () {
-          splice(array, 2, "a");
+        assert.throws(function() {
+          splice(array, 2, 'a');
         }, Error);
 
-        assert.throws(function () {
+        assert.throws(function() {
             splice(array, 2, {});
         }, Error);
       });