diff --git a/libavcodec/dsputil.c b/libavcodec/dsputil.c
index f2b2fc8d2b..92d613a93d 100644
--- a/libavcodec/dsputil.c
+++ b/libavcodec/dsputil.c
@@ -3788,7 +3788,7 @@ static int dct264_sad8x8_c(/*MpegEncContext*/ void *c, uint8_t *src1, uint8_t *s
 
 static int dct_max8x8_c(/*MpegEncContext*/ void *c, uint8_t *src1, uint8_t *src2, int stride, int h){
     MpegEncContext * const s= (MpegEncContext *)c;
-    DECLARE_ALIGNED_8(uint64_t, aligned_temp[sizeof(DCTELEM)*64/8]);
+    DECLARE_ALIGNED_16(uint64_t, aligned_temp[sizeof(DCTELEM)*64/8]);
     DCTELEM * const temp= (DCTELEM*)aligned_temp;
     int sum=0, i;
 
@@ -3805,7 +3805,7 @@ static int dct_max8x8_c(/*MpegEncContext*/ void *c, uint8_t *src1, uint8_t *src2
 
 static int quant_psnr8x8_c(/*MpegEncContext*/ void *c, uint8_t *src1, uint8_t *src2, int stride, int h){
     MpegEncContext * const s= (MpegEncContext *)c;
-    DECLARE_ALIGNED_8 (uint64_t, aligned_temp[sizeof(DCTELEM)*64*2/8]);
+    DECLARE_ALIGNED_16(uint64_t, aligned_temp[sizeof(DCTELEM)*64*2/8]);
     DCTELEM * const temp= (DCTELEM*)aligned_temp;
     DCTELEM * const bak = ((DCTELEM*)aligned_temp)+64;
     int sum=0, i;
@@ -3830,9 +3830,9 @@ static int quant_psnr8x8_c(/*MpegEncContext*/ void *c, uint8_t *src1, uint8_t *s
 static int rd8x8_c(/*MpegEncContext*/ void *c, uint8_t *src1, uint8_t *src2, int stride, int h){
     MpegEncContext * const s= (MpegEncContext *)c;
     const uint8_t *scantable= s->intra_scantable.permutated;
-    DECLARE_ALIGNED_8 (uint64_t, aligned_temp[sizeof(DCTELEM)*64/8]);
-    DECLARE_ALIGNED_8 (uint64_t, aligned_src1[8]);
-    DECLARE_ALIGNED_8 (uint64_t, aligned_src2[8]);
+    DECLARE_ALIGNED_16(uint64_t, aligned_temp[sizeof(DCTELEM)*64/8]);
+    DECLARE_ALIGNED_16(uint64_t, aligned_src1[8]);
+    DECLARE_ALIGNED_16(uint64_t, aligned_src2[8]);
     DCTELEM * const temp= (DCTELEM*)aligned_temp;
     uint8_t * const lsrc1 = (uint8_t*)aligned_src1;
     uint8_t * const lsrc2 = (uint8_t*)aligned_src2;
@@ -3909,7 +3909,7 @@ static int rd8x8_c(/*MpegEncContext*/ void *c, uint8_t *src1, uint8_t *src2, int
 static int bit8x8_c(/*MpegEncContext*/ void *c, uint8_t *src1, uint8_t *src2, int stride, int h){
     MpegEncContext * const s= (MpegEncContext *)c;
     const uint8_t *scantable= s->intra_scantable.permutated;
-    DECLARE_ALIGNED_8 (uint64_t, aligned_temp[sizeof(DCTELEM)*64/8]);
+    DECLARE_ALIGNED_16(uint64_t, aligned_temp[sizeof(DCTELEM)*64/8]);
     DCTELEM * const temp= (DCTELEM*)aligned_temp;
     int i, last, run, bits, level, start_i;
     const int esc_length= s->ac_esc_length;