diff --git a/include/asm-x86_64/processor.h b/include/asm-x86_64/processor.h
index 19525175b91c2a7793bf463c4e78eba925030d3c..31f579b828f232de4789f515b3aa5c1d633e46a1 100644
--- a/include/asm-x86_64/processor.h
+++ b/include/asm-x86_64/processor.h
@@ -371,7 +371,7 @@ static inline void sync_core(void)
 #define ARCH_HAS_PREFETCH
 static inline void prefetch(void *x) 
 { 
-	asm volatile("prefetcht0 %0" :: "m" (*(unsigned long *)x));
+	asm volatile("prefetcht0 (%0)" :: "r" (x));
 } 
 
 #define ARCH_HAS_PREFETCHW 1