diff --git a/Makefile b/Makefile
index 07ebed642..93c09f7c7 100644
--- a/Makefile
+++ b/Makefile
@@ -201,8 +201,8 @@ CXXFLAGS += -fPIE -fsanitize-memory-track-origins
 LDFLAGS += -fPIE -fsanitize-memory-track-origins
 endif
 ifeq ($(SANITIZER),cfi)
-CXXFLAGS += -flto
-LDFLAGS += -flto
+CXXFLAGS += -flto -fvisibility=hidden
+LDFLAGS += -flto -fvisibility=hidden
 endif
 endif