diff --git a/tests/lavfi-regression.sh b/tests/lavfi-regression.sh
index b8a308a42f..4e9401c30b 100755
--- a/tests/lavfi-regression.sh
+++ b/tests/lavfi-regression.sh
@@ -37,6 +37,7 @@ do_lavfi "drawbox"            "drawbox=224:24:88:72:#FF8010@0.5"
 do_lavfi "fade"               "fade=in:5:15,fade=out:30:15"
 do_lavfi "null"               "null"
 do_lavfi "overlay"            "split[m],scale=88:72,pad=96:80:4:4[o2];[m]fifo,[o2]overlay=240:16"
+do_lavfi "pad"                "pad=iw*1.5:ih*1.5:iw*0.3:ih*0.2"
 do_lavfi "scale200"           "scale=200:200"
 do_lavfi "scale500"           "scale=500:500"
 do_lavfi "setdar"             "setdar=16/9"
diff --git a/tests/ref/lavfi/pad b/tests/ref/lavfi/pad
new file mode 100644
index 0000000000..638b423135
--- /dev/null
+++ b/tests/ref/lavfi/pad
@@ -0,0 +1 @@
+pad                 8cd88a7a224c46f1750e6127445454d5