diff --git a/ffprobe.c b/ffprobe.c
index b3d45171ac..9db48897fa 100644
--- a/ffprobe.c
+++ b/ffprobe.c
@@ -155,6 +155,7 @@ static void show_stream(AVFormatContext *fmt_ctx, int stream_idx)
             printf("width=%d\n",                   dec_ctx->width);
             printf("height=%d\n",                  dec_ctx->height);
             printf("has_b_frames=%d\n",            dec_ctx->has_b_frames);
+            if (dec_ctx->sample_aspect_ratio.num) {
             printf("sample_aspect_ratio=%d:%d\n",  dec_ctx->sample_aspect_ratio.num,
                                                    dec_ctx->sample_aspect_ratio.den);
             av_reduce(&display_aspect_ratio.num, &display_aspect_ratio.den,
@@ -163,6 +164,7 @@ static void show_stream(AVFormatContext *fmt_ctx, int stream_idx)
                       1024*1024);
             printf("display_aspect_ratio=%d:%d\n", display_aspect_ratio.num,
                                                    display_aspect_ratio.den);
+            }
             printf("pix_fmt=%s\n",                 dec_ctx->pix_fmt != PIX_FMT_NONE ?
                    av_pix_fmt_descriptors[dec_ctx->pix_fmt].name : "unknown");
             break;