diff --git a/debian/rules b/debian/rules
index 9844df81e..6454bce89 100755
--- a/debian/rules
+++ b/debian/rules
@@ -85,6 +85,7 @@ override_dh_auto_test:
 
 execute_after_dh_auto_clean:
 	rm -f $(BUILD_FLAGS_FILE)
+	find . -name __pycache__ -type d -print0 | xargs -r0 rm -r
 
 override_dh_installdocs-arch:
 	# dh_installdocs --link-doc generates binNMU unsafe deps (Bug #747141)