diff --git a/src/poetry/console/commands/init.py b/src/poetry/console/commands/init.py
index 0393351c1d5..fdf48832ce7 100644
--- a/src/poetry/console/commands/init.py
+++ b/src/poetry/console/commands/init.py
@@ -292,6 +292,11 @@ def _determine_requirements(
             )
             question.set_validator(self._validate_package)
 
+            follow_up_question = self.create_question(
+                "\nAdd a package (leave blank to skip):"
+            )
+            follow_up_question.set_validator(self._validate_package)
+
             package = self.ask(question)
             while package:
                 constraint = self._parse_requirements([package])[0]
@@ -303,7 +308,7 @@ def _determine_requirements(
                 ):
                     self.line(f"Adding <info>{package}</info>")
                     result.append(constraint)
-                    package = self.ask("\nAdd a package (leave blank to skip):")
+                    package = self.ask(follow_up_question)
                     continue
 
                 canonicalized_name = canonicalize_name(constraint["name"])
@@ -371,7 +376,7 @@ def _determine_requirements(
                     result.append(constraint)
 
                 if self.io.is_interactive():
-                    package = self.ask("\nAdd a package (leave blank to skip):")
+                    package = self.ask(follow_up_question)
 
             return result
 
diff --git a/src/poetry/utils/dependency_specification.py b/src/poetry/utils/dependency_specification.py
index e80a2b97019..adcfd3d55ab 100644
--- a/src/poetry/utils/dependency_specification.py
+++ b/src/poetry/utils/dependency_specification.py
@@ -114,7 +114,7 @@ def _parse_dependency_specification_simple(
     require: DependencySpec = {}
 
     if " " in pair:
-        name, version = pair.split(" ", 2)
+        name, version = pair.split(" ", 1)
         extras_m = re.search(r"\[([\w\d,-_]+)\]$", name)
         if extras_m:
             extras = [e.strip() for e in extras_m.group(1).split(",")]
diff --git a/tests/console/commands/test_init.py b/tests/console/commands/test_init.py
index c4d0171f43a..90b50b5f3cc 100644
--- a/tests/console/commands/test_init.py
+++ b/tests/console/commands/test_init.py
@@ -595,9 +595,6 @@ def test_interactive_with_file_dependency(
 def test_interactive_with_wrong_dependency_inputs(
     tester: CommandTester, repo: TestRepository
 ):
-    repo.add_package(get_package("pendulum", "2.0.0"))
-    repo.add_package(get_package("pytest", "3.6.0"))
-
     inputs = [
         "my-package",  # Package name
         "1.2.3",  # Version
@@ -606,10 +603,8 @@ def test_interactive_with_wrong_dependency_inputs(
         "MIT",  # License
         "^3.8",  # Python
         "",  # Interactive packages
+        "foo 1.19.2",
         "pendulum 2.0.0 foo",  # Package name and constraint (invalid)
-        "pendulum 2.0.0",  # Package name and constraint (invalid)
-        "pendulum 2.0.0",  # Package name and constraint (invalid)
-        "pendulum 2.0.0",  # Package name and constraint (invalid)
         "pendulum@^2.0.0",  # Package name and constraint (valid)
         "",  # End package selection
         "",  # Interactive dev packages
@@ -633,6 +628,7 @@ def test_interactive_with_wrong_dependency_inputs(
 
 [tool.poetry.dependencies]
 python = "^3.8"
+foo = "1.19.2"
 pendulum = "^2.0.0"
 
 [tool.poetry.group.dev.dependencies]