diff --git a/doc/examples/filtering_audio.c b/doc/examples/filtering_audio.c
index 2207b458fe..dda55964fc 100644
--- a/doc/examples/filtering_audio.c
+++ b/doc/examples/filtering_audio.c
@@ -129,7 +129,7 @@ static int init_filters(const char *filters_descr)
     inputs->pad_idx    = 0;
     inputs->next       = NULL;
 
-    if ((ret = avfilter_graph_parse(filter_graph, filter_descr,
+    if ((ret = avfilter_graph_parse(filter_graph, filters_descr,
                                     &inputs, &outputs, NULL)) < 0)
         return ret;
 
diff --git a/doc/examples/filtering_video.c b/doc/examples/filtering_video.c
index 1985bc5f86..29fb77bcaa 100644
--- a/doc/examples/filtering_video.c
+++ b/doc/examples/filtering_video.c
@@ -120,7 +120,7 @@ static int init_filters(const char *filters_descr)
     inputs->pad_idx    = 0;
     inputs->next       = NULL;
 
-    if ((ret = avfilter_graph_parse(filter_graph, filter_descr,
+    if ((ret = avfilter_graph_parse(filter_graph, filters_descr,
                                     &inputs, &outputs, NULL)) < 0)
         return ret;