diff --git a/src/index.js b/src/index.js
index 810e2be..7014978 100644
--- a/src/index.js
+++ b/src/index.js
@@ -12,7 +12,7 @@ type Command = string;
 
 const createCodeEditorPlugin = (options?: Options) => {
   return {
-    handleKeyCommand(command: Command, editorState: EditorState, { setEditorState }: PluginFunctions) {
+    handleKeyCommand(command: Command, editorState: EditorState, _: any, { setEditorState }: PluginFunctions) {
       let newState;
 
       if (CodeUtils.hasSelectionInBlock(editorState)) {