diff --git a/GL/platforms/sh4.h b/GL/platforms/sh4.h
index 4cdf85a..46c3513 100644
--- a/GL/platforms/sh4.h
+++ b/GL/platforms/sh4.h
@@ -24,8 +24,7 @@
 #define GL_FORCE_INLINE static GL_INLINE_DEBUG
 #endif
 
-#define PREFETCH(addr) (void) 0
-//__builtin_prefetch((addr))
+#define PREFETCH(addr) __builtin_prefetch((addr))
 
 GL_FORCE_INLINE void* memcpy_fast(void *dest, const void *src, size_t len) {
   if(!len) {