diff --git a/libavformat/flv.h b/libavformat/flv.h
index 3d05857afa..34948a035f 100644
--- a/libavformat/flv.h
+++ b/libavformat/flv.h
@@ -80,9 +80,9 @@ enum {
 };
 
 enum {
-    FLV_CODECID_H263   = 2,
-    FLV_CODECID_SCREEN = 3,
-    FLV_CODECID_VP6    = 4,
+    FLV_CODECID_H263    = 2,
+    FLV_CODECID_SCREEN  = 3,
+    FLV_CODECID_VP6     = 4,
 };
 
 enum {