diff --git a/libswscale/utils.c b/libswscale/utils.c
index b93a185af7..a5702922b8 100644
--- a/libswscale/utils.c
+++ b/libswscale/utils.c
@@ -512,7 +512,7 @@ static av_cold int initFilter(int16_t **outFilter, int32_t **filterPos,
                 filter[i * filterSize + j] = coeff;
                 xx++;
             }
-            xDstInSrc += 2 * xInc;
+            xDstInSrc += 2LL * xInc;
         }
     }