diff --git a/revid/config/variables.go b/revid/config/variables.go
index 726faf16..b66ffc26 100644
--- a/revid/config/variables.go
+++ b/revid/config/variables.go
@@ -297,7 +297,7 @@ var Variables = []struct {
 	},
 	{
 		Name:  KeyInputCodec,
-		Type_: "enum:H264,H265,MJPEG,JPEG,PCM,ADPCM",
+		Type_: "enum:h264,h265,mjpeg,jpeg,pcm,adpcm",
 		Update: func(c *Config, v string) {
 			c.InputCodec = v
 		},