diff --git a/README.md b/README.md
index 7fb47ef..5df8f8f 100644
--- a/README.md
+++ b/README.md
@@ -56,6 +56,8 @@ commands are supported.
 
 `<LocalLeader>a` Create an initial clause for a type declaration.
 
+`<LocalLeader>b` Add skeleton definition for an interface.
+
 `<LocalLeader>c` case split
 
 `<LocalLeader>mc` make case