diff --git a/tests/lavfi-regression.sh b/tests/lavfi-regression.sh
index f9a6b2b767..37aaca7a4a 100755
--- a/tests/lavfi-regression.sh
+++ b/tests/lavfi-regression.sh
@@ -68,7 +68,7 @@ vflip
 "
 
 if [ -n "$do_lavfi_pix_fmts" ]; then
-    # exclude pixel format currently not supported by NUT and which are not supported as input
+    # exclude pixel formats currently not supported by NUT and which are not supported as input
     excluded_pix_fmts="rgb4_byte bgr4_byte rgb444le rgb444be bgr444le bgr444be"
     excluded_pix_fmts="$excluded_pix_fmts $(ffmpeg -pix_fmts list 2>/dev/null | sed -ne '9,$p' | grep '^\..\.' | cut -d' ' -f2)"