diff --git a/libswscale/rgb2rgb.c b/libswscale/rgb2rgb.c
index 29b6e5e989..aef779755d 100644
--- a/libswscale/rgb2rgb.c
+++ b/libswscale/rgb2rgb.c
@@ -72,11 +72,9 @@ void (*yvu9_to_yuy2)(const uint8_t *src1, const uint8_t *src2, const uint8_t *sr
 			long srcStride1, long srcStride2,
 			long srcStride3, long dstStride);
 
-#if defined(HAVE_MMX)
+#if defined(ARCH_X86) || defined(ARCH_X86_64)
 static const uint64_t mmx_null  __attribute__((aligned(8))) = 0x0000000000000000ULL;
 static const uint64_t mmx_one   __attribute__((aligned(8))) = 0xFFFFFFFFFFFFFFFFULL;
-#endif
-#if defined(ARCH_X86) || defined(ARCH_X86_64)
 static const uint64_t mask32b  attribute_used __attribute__((aligned(8))) = 0x000000FF000000FFULL;
 static const uint64_t mask32g  attribute_used __attribute__((aligned(8))) = 0x0000FF000000FF00ULL;
 static const uint64_t mask32r  attribute_used __attribute__((aligned(8))) = 0x00FF000000FF0000ULL;