diff --git a/Makefile b/Makefile
index 96cc0b6..cbcf101 100644
--- a/Makefile
+++ b/Makefile
@@ -52,6 +52,8 @@
 # FLAGS += -s ALLOW_MEMORY_GROWTH=1
 FLAGS += -s EMBIND_STD_STRING_IS_UTF8=1
 
+FLAGS += -D "IM_ASSERT(EXPR)=((void)(EXPR))"
+
 FLAGS += -D IMGUI_DISABLE_OBSOLETE_FUNCTIONS
 FLAGS += -D IMGUI_DISABLE_DEMO_WINDOWS