diff --git a/libavfilter/scale_eval.c b/libavfilter/scale_eval.c
index a0de07d29d..ce55804ed7 100644
--- a/libavfilter/scale_eval.c
+++ b/libavfilter/scale_eval.c
@@ -124,7 +124,7 @@ int ff_scale_adjust_dimensions(AVFilterLink *inlink,
     int force_original_aspect_ratio, int force_divisible_by)
 {
     int64_t w, h;
-    int factor_w, factor_h;
+    int64_t factor_w, factor_h;
 
     w = *ret_w;
     h = *ret_h;
diff --git a/libavfilter/vf_zscale.c b/libavfilter/vf_zscale.c
index 44bc3c3f28..48c9457642 100644
--- a/libavfilter/vf_zscale.c
+++ b/libavfilter/vf_zscale.c
@@ -206,7 +206,7 @@ static int config_props(AVFilterLink *outlink)
     double var_values[VARS_NB], res;
     char *expr;
     int ret;
-    int factor_w, factor_h;
+    int64_t factor_w, factor_h;
 
     var_values[VAR_IN_W]  = var_values[VAR_IW] = inlink->w;
     var_values[VAR_IN_H]  = var_values[VAR_IH] = inlink->h;