diff --git a/GNUmakefile b/GNUmakefile
index af650279..727dd50d 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -495,12 +495,12 @@ XOPT_SOURCES := deps/xopt/xopt.c
 XOPT_OBJS := $(call get_objs,XOPT_SOURCES)
 $(filter $(BUILD_DIR)/win%,$(XOPT_OBJS)): CFLAGS += \
 	-DHAVE_SNPRINTF \
-	-DHAVE_VSNPRINTF \
 	-DHAVE_VASNPRINTF \
 	-DHAVE_VASPRINTF \
 	-Dvsnprintf=rpl_vsnprintf
 $(XOPT_OBJS): CFLAGS += \
-	-Wno-implicit-const-int-float-conversion
+	-Wno-implicit-const-int-float-conversion \
+	-Wno-pointer-to-int-cast
 
 QUICKJS_SOURCES := \
 	deps/quickjs/cutils.c \