diff --git a/include/rapidjson/rapidjson.h b/include/rapidjson/rapidjson.h
index 1d409f1..6939e8d 100644
--- a/include/rapidjson/rapidjson.h
+++ b/include/rapidjson/rapidjson.h
@@ -16,13 +16,22 @@
 #ifdef _MSC_VER
 typedef __int64 int64_t;
 typedef unsigned __int64 uint64_t;
-#define RAPIDJSON_FORCEINLINE __forceinline
 #else
 #include <inttypes.h>
-#define RAPIDJSON_FORCEINLINE
 #endif
 #endif // RAPIDJSON_NO_INT64TYPEDEF
 
+///////////////////////////////////////////////////////////////////////////////
+// RAPIDJSON_FORCEINLINE
+
+#ifndef RAPIDJSON_FORCEINLINE
+#ifdef _MSC_VER
+#define RAPIDJSON_FORCEINLINE __forceinline
+#else
+#define RAPIDJSON_FORCEINLINE
+#endif
+#endif // RAPIDJSON_FORCEINLINE
+
 ///////////////////////////////////////////////////////////////////////////////
 // RAPIDJSON_ENDIAN
 #define RAPIDJSON_LITTLEENDIAN	0	//!< Little endian machine