diff --git a/extensions/objective-c/package.json b/extensions/objective-c/package.json
index 94795240f5c..0a5125c3273 100644
--- a/extensions/objective-c/package.json
+++ b/extensions/objective-c/package.json
@@ -6,7 +6,7 @@
 		"vscode": "*"
 	},
 	"scripts": {
-		"update-grammar": "node ../../build/npm/update-grammar.js atom/language-objective-c grammars/objective-c.cson ./syntaxes/objective-c.tmLanguage.json && node ../../build/npm/update-grammar.js atom/language-objective-c grammars/objective-c++.cson ./syntaxes/objective-c++.tmLanguage.json"
+		"update-grammar": "node ../../build/npm/update-grammar.js atom/language-objective-c grammars/objective-c.cson ./syntaxes/objective-c.tmLanguage.json && node ../../build/npm/update-grammar.js atom/language-objective-c grammars/objective-c%2B%2B.cson ./syntaxes/objective-c++.tmLanguage.json"
 	},
 	"contributes": {
 		"languages": [
diff --git a/extensions/objective-c/syntaxes/objective-c++.tmLanguage.json b/extensions/objective-c/syntaxes/objective-c++.tmLanguage.json
index 2b46507a2fb..82ee0f572d3 100644
--- a/extensions/objective-c/syntaxes/objective-c++.tmLanguage.json
+++ b/extensions/objective-c/syntaxes/objective-c++.tmLanguage.json
@@ -1,9 +1,10 @@
 {
 	"information_for_contributors": [
-		"This file has been converted from https://github.com/atom/language-objective-c/blob/master/grammars/objective-c++.cson",
+		"This file has been converted from https://github.com/atom/language-objective-c/blob/master/grammars/objective-c%2B%2B.cson",
 		"If you want to provide a fix or improvement, please create a pull request against the original repository.",
 		"Once accepted there, we are happy to receive an update request."
 	],
+	"version": "https://github.com/atom/language-objective-c/commit/7fdf0c40ec1d592a902ed6a7cf5565bdf12e2ae8",
 	"scopeName": "source.objcpp",
 	"fileTypes": [
 		"mm",