diff --git a/python/grass/tools/tests/grass_tools_tool_function_wrap_test.py b/python/grass/tools/tests/grass_tools_tool_function_wrap_test.py
index 714c14f0e2b..bb75dd3cdbc 100644
--- a/python/grass/tools/tests/grass_tools_tool_function_wrap_test.py
+++ b/python/grass/tools/tests/grass_tools_tool_function_wrap_test.py
@@ -65,10 +65,10 @@ def test_names(echoing_resolver):
 def test_levenshtein_distance_empty_text():
     empty_text = ""
     non_empty_text = "abc"
-    ToolFunctionResolver.levenshtein_distance(empty_text, non_empty_text) == len(
+    assert ToolFunctionResolver.levenshtein_distance(empty_text, non_empty_text) == len(
         non_empty_text
     )
-    ToolFunctionResolver.levenshtein_distance(non_empty_text, empty_text) == len(
+    assert ToolFunctionResolver.levenshtein_distance(non_empty_text, empty_text) == len(
         non_empty_text
     )