diff --git a/include/asm-x86_64/rwlock.h b/include/asm-x86_64/rwlock.h
index 8a78a4ace53c..9942cc393064 100644
--- a/include/asm-x86_64/rwlock.h
+++ b/include/asm-x86_64/rwlock.h
@@ -64,7 +64,7 @@
 		     ::"a" (rw) : "memory")
 
 #define __build_write_lock_const(rw, helper) \
-	asm volatile(LOCK "subl $" RW_LOCK_BIAS_STR ",(%0)\n\t" \
+	asm volatile(LOCK "subl $" RW_LOCK_BIAS_STR ",%0\n\t" \
 		     "jnz 2f\n" \
 		     "1:\n" \
 		    LOCK_SECTION_START("") \