diff --git a/tests/Makefile b/tests/Makefile
index 5d5d266..34bd057 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -1,10 +1,11 @@
 INCLUDES = -I..
-FLAGS = -Wno-pointer-to-int-cast -Wno-int-to-pointer-cast -DSTB_DIVIDE_TEST
+CFLAGS = -Wno-pointer-to-int-cast -Wno-int-to-pointer-cast -DSTB_DIVIDE_TEST
+CPPFLAGS = -Wno-write-strings -DSTB_DIVIDE_TEST
 
 32:
-	$(CC) -m32 $(INCLUDES) $(FLAGS) ../stb_vorbis.c test_c_compilation.c     -lm
-	$(CC) -m32 $(INCLUDES) $(FLAGS) ../stb_vorbis.c test_cpp_compilation.cpp -lm
+	$(CC) -m32 $(INCLUDES) $(CFLAGS) ../stb_vorbis.c test_c_compilation.c     -lm
+	$(CC) -m32 $(INCLUDES) $(CPPFLAGS) ../stb_vorbis.c test_cpp_compilation.cpp -lm
 
 64:
-	$(CC) -m64 $(INCLUDES) $(FLAGS) ../stb_vorbis.c test_c_compilation.c     -lm
-	$(CC) -m64 $(INCLUDES) $(FLAGS) ../stb_vorbis.c test_cpp_compilation.cpp -lm
+	$(CC) -m64 $(INCLUDES) $(CFLAGS) ../stb_vorbis.c test_c_compilation.c     -lm
+	$(CC) -m64 $(INCLUDES) $(CPPFLAGS) ../stb_vorbis.c test_cpp_compilation.cpp -lm