diff --git a/libavcodec/hevcdsp_template.c b/libavcodec/hevcdsp_template.c
index a876ee4625..c0a62bc4ec 100644
--- a/libavcodec/hevcdsp_template.c
+++ b/libavcodec/hevcdsp_template.c
@@ -52,7 +52,7 @@ static void FUNC(transquant_bypass4x4)(uint8_t *_dst, int16_t *coeffs,
 
     for (y = 0; y < 4; y++) {
         for (x = 0; x < 4; x++) {
-            dst[x] += *coeffs;
+            dst[x] = av_clip_pixel(dst[x] + *coeffs);
             coeffs++;
         }
         dst += stride;
@@ -69,7 +69,7 @@ static void FUNC(transquant_bypass8x8)(uint8_t *_dst, int16_t *coeffs,
 
     for (y = 0; y < 8; y++) {
         for (x = 0; x < 8; x++) {
-            dst[x] += *coeffs;
+            dst[x] = av_clip_pixel(dst[x] + *coeffs);
             coeffs++;
         }
         dst += stride;
@@ -86,7 +86,7 @@ static void FUNC(transquant_bypass16x16)(uint8_t *_dst, int16_t *coeffs,
 
     for (y = 0; y < 16; y++) {
         for (x = 0; x < 16; x++) {
-            dst[x] += *coeffs;
+            dst[x] = av_clip_pixel(dst[x] + *coeffs);
             coeffs++;
         }
         dst += stride;
@@ -103,7 +103,7 @@ static void FUNC(transquant_bypass32x32)(uint8_t *_dst, int16_t *coeffs,
 
     for (y = 0; y < 32; y++) {
         for (x = 0; x < 32; x++) {
-            dst[x] += *coeffs;
+            dst[x] = av_clip_pixel(dst[x] + *coeffs);
             coeffs++;
         }
         dst += stride;