diff --git a/python/nav/bin/navtopology.py b/python/nav/bin/navtopology.py
index 375af78273..220db8d740 100755
--- a/python/nav/bin/navtopology.py
+++ b/python/nav/bin/navtopology.py
@@ -5,4 +5,5 @@
 
 from nav.topology.detector import main
 
-main()
+if __name__ == '__main__':
+    main()