diff --git a/arch/x86/include/asm/cache.h b/arch/x86/include/asm/cache.h
index 145b878..256a3c0 100644
--- a/arch/x86/include/asm/cache.h
+++ b/arch/x86/include/asm/cache.h
@@ -7,13 +7,8 @@
 #define __X86_CACHE_H__
 
 /*
- * If CONFIG_SYS_CACHELINE_SIZE is defined use it for DMA alignment.  Otherwise
- * use 64-bytes, a safe default for x86.
+ * Use CONFIG_SYS_CACHELINE_SIZE (which is set to 64-bytes) for DMA alignment.
  */
-#ifndef CONFIG_SYS_CACHELINE_SIZE
-#define CONFIG_SYS_CACHELINE_SIZE	64
-#endif
-
 #define ARCH_DMA_MINALIGN		CONFIG_SYS_CACHELINE_SIZE
 
 static inline void wbinvd(void)