diff --git a/python/grass/grassdb/manage.py b/python/grass/grassdb/manage.py
index 0446263615e..28c4a87555b 100644
--- a/python/grass/grassdb/manage.py
+++ b/python/grass/grassdb/manage.py
@@ -108,7 +108,7 @@ def split_mapset_path(mapset_path):
     """Split mapset path to three parts - grassdb, location, mapset"""
     mapset_path = Path(mapset_path)
     if len(mapset_path.parts) < 3:
-        ValueError(
+        raise ValueError(
             _("Mapset path '{}' needs at least three components").format(mapset_path)
         )
     mapset = mapset_path.name
diff --git a/scripts/g.extension/testsuite/test_addons_download.py b/scripts/g.extension/testsuite/test_addons_download.py
index fd940bc39b0..e5077f9894e 100644
--- a/scripts/g.extension/testsuite/test_addons_download.py
+++ b/scripts/g.extension/testsuite/test_addons_download.py
@@ -51,7 +51,7 @@ def setUp(self):
         if self.install_prefix.exists():
             files = list(path.name for path in self.install_prefix.iterdir())
             if files:
-                RuntimeError(
+                raise RuntimeError(
                     f"Install prefix path '{self.install_prefix}' \
                     contains files {','.join(files)}"
                 )
diff --git a/scripts/g.extension/testsuite/test_addons_modules.py b/scripts/g.extension/testsuite/test_addons_modules.py
index c7cedc84bb4..c1cab5c954a 100644
--- a/scripts/g.extension/testsuite/test_addons_modules.py
+++ b/scripts/g.extension/testsuite/test_addons_modules.py
@@ -80,7 +80,7 @@ def setUp(self):
         if os.path.exists(self.install_prefix):
             files = os.listdir(self.install_prefix)
             if files:
-                RuntimeError(
+                raise RuntimeError(
                     "Install prefix path '{}' contains files {}".format(
                         self.install_prefix, files
                     )