diff --git a/libavfilter/vf_crop.c b/libavfilter/vf_crop.c
index 311ee30e7d..c9b76f626b 100644
--- a/libavfilter/vf_crop.c
+++ b/libavfilter/vf_crop.c
@@ -23,6 +23,8 @@
  * video crop filter
  */
 
+/* #define DEBUG */
+
 #include "avfilter.h"
 #include "libavutil/eval.h"
 #include "libavutil/avstring.h"
@@ -262,9 +264,11 @@ static void start_frame(AVFilterLink *link, AVFilterBufferRef *picref)
     crop->x &= ~((1 << crop->hsub) - 1);
     crop->y &= ~((1 << crop->vsub) - 1);
 
+#ifdef DEBUG
     av_log(ctx, AV_LOG_DEBUG,
            "n:%d t:%f x:%d y:%d x+w:%d y+h:%d\n",
            (int)crop->var_values[VAR_N], crop->var_values[VAR_T], crop->x, crop->y, crop->x+crop->w, crop->y+crop->h);
+#endif
 
     ref2->data[0] += crop->y * ref2->linesize[0];
     ref2->data[0] += crop->x * crop->max_step[0];