diff --git a/libswscale/utils.c b/libswscale/utils.c
index 7782a26f1d..c3784f07e9 100644
--- a/libswscale/utils.c
+++ b/libswscale/utils.c
@@ -511,7 +511,7 @@ static av_cold int initFilter(int16_t **outFilter, int32_t **filterPos,
                 filter[i * filterSize + j] = coeff;
                 xx++;
             }
-            xDstInSrc += 2 * xInc;
+            xDstInSrc += 2LL * xInc;
         }
     }