diff --git a/tests/test_main.py b/tests/test_main.py
index 0f1fb9c558dad8468e64d8aa3ed17bc61b01963d..add5f4410ab9b20b515288849f40b2ddd1f48cb4 100644
--- a/tests/test_main.py
+++ b/tests/test_main.py
@@ -14,7 +14,7 @@ import io
 import shutil
 
 def clear_output():
-    if os.path.exists(output)
+    if os.path.exists(output):
         shutil.rmtree(output)
     os.mkdir(output)