diff --git a/tools/test-all b/tools/test-all
index b129756f10..66fbda3090 100755
--- a/tools/test-all
+++ b/tools/test-all
@@ -38,7 +38,7 @@ run ./tools/clean-repo
 run ./tools/lint --backend $FORCEARG
 run ./tools/test-tools
 run ./tools/test-backend $FORCEARG
-run ./tools/run-mypy
+run ./tools/run-mypy $FORCEARG
 run ./tools/test-migrations
 # Not running SVG optimizing since it's low-churn
 # run ./tools/optimize-svg