diff --git a/package-lock.json b/package-lock.json
index d2464d823..dfeb65934 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "2.2.1",
       "license": "MIT",
       "dependencies": {
-        "@nomicfoundation/slang": "1.3.2",
+        "@nomicfoundation/slang": "1.3.4",
         "@solidity-parser/parser": "^0.20.2",
         "semver": "^7.7.4"
       },
@@ -1448,9 +1448,9 @@
       }
     },
     "node_modules/@nomicfoundation/slang": {
-      "version": "1.3.2",
-      "resolved": "https://registry.npmjs.org/@nomicfoundation/slang/-/slang-1.3.2.tgz",
-      "integrity": "sha512-jkwB5BnIGLEgCSDVb2ysf+fEKhkc3g7pyZOZ9+Q9Yz6PX2ahwj6D5esKV0q1lf61QJyyxIAj2ysoPWTqZivteQ==",
+      "version": "1.3.4",
+      "resolved": "https://registry.npmjs.org/@nomicfoundation/slang/-/slang-1.3.4.tgz",
+      "integrity": "sha512-ghzrPSYH1sZO65id6+Bq2Ood87HT54QP3RGC8EkmpcrJ6tT9Ky0RtaJfrzV5G4jpDsnNua6+YEDpzOMori04hQ==",
       "license": "MIT",
       "dependencies": {
         "@bytecodealliance/preview2-shim": "^0.17.2"
@@ -2221,9 +2221,9 @@
       }
     },
     "node_modules/@typescript-eslint/typescript-estree/node_modules/minimatch": {
-      "version": "10.2.2",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-10.2.2.tgz",
-      "integrity": "sha512-+G4CpNBxa5MprY+04MbgOw1v7So6n5JY166pFi9KfYwT78fxScCeSNQSNzp6dpPSW2rONOps6Ocam1wFhCgoVw==",
+      "version": "10.2.4",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-10.2.4.tgz",
+      "integrity": "sha512-oRjTw/97aTBN0RHbYCdtF1MQfvusSIBQM0IZEgzl6426+8jSC0nF1a/GmnVLpfB9yyr6g6FTqWqiZVbxrtaCIg==",
       "dev": true,
       "license": "BlueOak-1.0.0",
       "dependencies": {
@@ -7094,9 +7094,9 @@
       }
     },
     "node_modules/minimatch": {
-      "version": "3.1.3",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.3.tgz",
-      "integrity": "sha512-M2GCs7Vk83NxkUyQV1bkABc4yxgz9kILhHImZiBPAZ9ybuvCb0/H7lEl5XvIg3g+9d4eNotkZA5IWwYl0tibaA==",
+      "version": "3.1.5",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.5.tgz",
+      "integrity": "sha512-VgjWUsnnT6n+NUk6eZq77zeFdpW2LWDzP6zFGrCbHXiYNul5Dzqk2HHQ5uFH2DNW5Xbp8+jVzaeNt94ssEEl4w==",
       "dev": true,
       "license": "ISC",
       "dependencies": {
diff --git a/package.json b/package.json
index 06fe804cf..bb2c79981 100644
--- a/package.json
+++ b/package.json
@@ -115,7 +115,7 @@
     "webpack-cli": "^6.0.1"
   },
   "dependencies": {
-    "@nomicfoundation/slang": "1.3.2",
+    "@nomicfoundation/slang": "1.3.4",
     "@solidity-parser/parser": "^0.20.2",
     "semver": "^7.7.4"
   },
diff --git a/src/slang-nodes/RevertStatement.ts b/src/slang-nodes/RevertStatement.ts
index f423bba70..611889dab 100644
--- a/src/slang-nodes/RevertStatement.ts
+++ b/src/slang-nodes/RevertStatement.ts
@@ -1,5 +1,4 @@
 import { NonterminalKind } from '@nomicfoundation/slang/cst';
-import { joinExisting } from '../slang-utils/join-existing.js';
 import { extractVariant } from '../slang-utils/extract-variant.js';
 import { SlangNode } from './SlangNode.js';
 import { IdentifierPath } from './IdentifierPath.js';
@@ -13,7 +12,7 @@ import type { AstNode } from './types.d.ts';
 export class RevertStatement extends SlangNode {
   readonly kind = NonterminalKind.RevertStatement;
 
-  error?: IdentifierPath;
+  error: IdentifierPath;
 
   arguments: ArgumentsDeclaration['variant'];
 
@@ -24,9 +23,7 @@ export class RevertStatement extends SlangNode {
   ) {
     super(ast, collected);
 
-    if (ast.error) {
-      this.error = new IdentifierPath(ast.error, collected);
-    }
+    this.error = new IdentifierPath(ast.error, collected);
     this.arguments = extractVariant(
       new ArgumentsDeclaration(ast.arguments, collected, options)
     );
@@ -36,7 +33,8 @@ export class RevertStatement extends SlangNode {
 
   print(path: AstPath<RevertStatement>, print: PrintFunction): Doc {
     return [
-      joinExisting(' ', ['revert', path.call(print, 'error')]),
+      'revert ',
+      path.call(print, 'error'),
       path.call(print, 'arguments'),
       ';'
     ];