diff --git a/poetry/console/commands/init.py b/poetry/console/commands/init.py
index 976988f26c2..606dad2870a 100644
--- a/poetry/console/commands/init.py
+++ b/poetry/console/commands/init.py
@@ -373,7 +373,7 @@ def _parse_requirements(
         for requirement in requirements:
             requirement = requirement.strip()
             extras = []
-            extras_m = re.search(r"\[([\w\d,-_]+)\]$", requirement)
+            extras_m = re.search(r"\[([\w\d,-_ ]+)\]$", requirement)
             if extras_m:
                 extras = [e.strip() for e in extras_m.group(1).split(",")]
                 requirement, _ = requirement.split("[")
diff --git a/tests/console/commands/test_init.py b/tests/console/commands/test_init.py
index 20f992327e7..d367fbc8b8e 100644
--- a/tests/console/commands/test_init.py
+++ b/tests/console/commands/test_init.py
@@ -556,3 +556,12 @@ def test_predefined_and_interactive_dev_dependencies(tester, repo):
     assert expected in output
     assert 'pytest-requests = "^0.2.0"' in output
     assert 'pytest = "^3.6.0"' in output
+
+
+def test_add_package_with_extras_and_whitespace(tester):
+    result = tester._command._parse_requirements(["databases[postgresql, sqlite]"])
+
+    assert result[0]["name"] == "databases"
+    assert len(result[0]["extras"]) == 2
+    assert "postgresql" in result[0]["extras"]
+    assert "sqlite" in result[0]["extras"]