diff --git a/Makefile.defs b/Makefile.defs
index bb8091af1522..bd01ee5d53af 100644
--- a/Makefile.defs
+++ b/Makefile.defs
@@ -120,6 +120,7 @@ endif
 
 ifneq ($(LOCKDEBUG),)
     GO_BUILD_FLAGS += -tags lockdebug
+    GO_TEST_FLAGS += -tags lockdebug
 endif
 
 GO_BUILD_FLAGS += -ldflags '$(GO_BUILD_LDFLAGS) $(EXTRA_GO_BUILD_LDFLAGS)' $(EXTRA_GO_BUILD_FLAGS)