diff --git a/eslint.config.mjs b/eslint.config.mjs
index 52c9a4b4..ec6fafe5 100644
--- a/eslint.config.mjs
+++ b/eslint.config.mjs
@@ -1,6 +1,13 @@
 export default [
     {
         rules: {
+            "eol-last": "error",
+            //"no-extra-parens": "error",
+            "no-trailing-spaces": "error",
+            "no-extra-semi": "error",
+            "no-tabs": "error",
+            //"quotes": ["error", "double", { "avoidEscape": true }],
+            //"keyword-spacing": ["error", { "after": false }],
             "semi": "error",
             //"no-var": "error",
             "radix": "error",
diff --git a/gen/generate_interpreter.js b/gen/generate_interpreter.js
index f2f94bbf..4a90cec3 100755
--- a/gen/generate_interpreter.js
+++ b/gen/generate_interpreter.js
@@ -160,7 +160,7 @@ function gen_instruction_body(encodings, size)
         };
 
         return [].concat(
-	    "let prefixes_ = *prefixes;",
+            "let prefixes_ = *prefixes;",
             code,
             {
                 type: "if-else",