diff --git a/tests/lavfi-regression.sh b/tests/lavfi-regression.sh
index ac6bb7f29e21d4d39a34f12961a24965bca689fa..a25b54be96ee1ac39c4979cf05e5e80b2d10dffc 100755
--- a/tests/lavfi-regression.sh
+++ b/tests/lavfi-regression.sh
@@ -44,6 +44,7 @@ do_lavfi "crop_vflip"         "crop=iw-100:ih-100:100:100,vflip"
 do_lavfi "drawbox"            "drawbox=224:24:88:72:#FF8010@0.5"
 do_lavfi "edgedetect"         "edgedetect"
 do_lavfi "fade"               "fade=in:5:15,fade=out:30:15"
+do_lavfi "idet"               "idet"
 do_lavfi "null"               "null"
 do_lavfi "overlay"            "split[m],scale=88:72,pad=96:80:4:4[o2];[m]fifo[o1],[o1][o2]overlay=240:16"
 do_lavfi "pad"                "pad=iw*1.5:ih*1.5:iw*0.3:ih*0.2"
diff --git a/tests/ref/lavfi/idet b/tests/ref/lavfi/idet
new file mode 100644
index 0000000000000000000000000000000000000000..2c6c2ae66ccf57cd0b0514c35332411b94a72698
--- /dev/null
+++ b/tests/ref/lavfi/idet
@@ -0,0 +1 @@
+idet                1077e3cb6fc4916b5441dd08cea4c9a8