diff --git a/Makefile.flags b/Makefile.flags
index d3cc648..876a43a 100644
--- a/Makefile.flags
+++ b/Makefile.flags
@@ -39,7 +39,7 @@ export INCLUDEFLAGS := $(Platform_INCLUDEFLAGS)
 
 export CPPFLAGS = -DWIN32_LEAN_AND_MEAN
 export CFLAGS   = $(INCLUDEFLAGS) $(BUILD_OPTIONS) -Wno-attributes -g
-export CXXFLAGS = $(INCLUDEFLAGS) -DHELOS $(BUILD_OPTIONS) $(Platform_CXXFLAGS) -Wno-unused-result -std=c++17 -g
+export CXXFLAGS = $(INCLUDEFLAGS) -DHELOS $(BUILD_OPTIONS) $(Platform_CXXFLAGS) -Wno-unused-result -Wno-conversion-null -std=c++17 -g
 export LDFLAGS  = $(Platform_LDFLAGS) -g
 export LDLIBS   = $(Platform_LDLIBS) -lm -lstdc++