diff --git a/libavfilter/vf_select.c b/libavfilter/vf_select.c
index 33269b6594..bbfb63edf3 100644
--- a/libavfilter/vf_select.c
+++ b/libavfilter/vf_select.c
@@ -320,15 +320,15 @@ static av_cold void uninit(AVFilterContext *ctx)
     int i;
 
     if (select->expr)
-    av_expr_free(select->expr);
+        av_expr_free(select->expr);
     select->expr = NULL;
 
     if (select->pending_frames) {
-    for (i = 0; i < av_fifo_size(select->pending_frames)/sizeof(picref); i++) {
-        av_fifo_generic_read(select->pending_frames, &picref, sizeof(picref), NULL);
-        avfilter_unref_buffer(picref);
-    }
-    av_fifo_free(select->pending_frames);
+        for (i = 0; i < av_fifo_size(select->pending_frames)/sizeof(picref); i++) {
+            av_fifo_generic_read(select->pending_frames, &picref, sizeof(picref), NULL);
+            avfilter_unref_buffer(picref);
+        }
+        av_fifo_free(select->pending_frames);
     }
     select->pending_frames = NULL;
 }