diff --git a/alembic/script/base.py b/alembic/script/base.py
index 66564781..9a955b6b 100644
--- a/alembic/script/base.py
+++ b/alembic/script/base.py
@@ -609,7 +609,7 @@ def _generate_create_date(self) -> datetime.datetime:
         if self.timezone is not None:
             if ZoneInfo is None:
                 raise util.CommandError(
-                    "Python >= 3.9 is required for timezone support or"
+                    "Python >= 3.9 is required for timezone support or "
                     "the 'backports.zoneinfo' package must be installed."
                 )
             # First, assume correct capitalization
diff --git a/tests/test_script_production.py b/tests/test_script_production.py
index 7b7db814..a6618be2 100644
--- a/tests/test_script_production.py
+++ b/tests/test_script_production.py
@@ -297,7 +297,7 @@ def test_no_zoneinfo_module(self):
         with patch("alembic.script.base.ZoneInfo", new=None):
             with expect_raises_message(
                 CommandError,
-                "Python >= 3.9 is required for timezone support or"
+                "Python >= 3.9 is required for timezone support or "
                 "the 'backports.zoneinfo' package must be installed.",
             ):
                 self._test_tz(