diff --git a/libavfilter/vaf_spectrumsynth.c b/libavfilter/vaf_spectrumsynth.c
index ee394b49e3..ed191a3e34 100644
--- a/libavfilter/vaf_spectrumsynth.c
+++ b/libavfilter/vaf_spectrumsynth.c
@@ -419,6 +419,8 @@ static int try_push_frame(AVFilterContext *ctx, int x)
                 }
 
                 ret = ff_filter_frame(outlink, out);
+                if (ret < 0)
+                    return ret;
             }
         }
     }