diff --git a/extensions/clojure/syntaxes/Clojure.tmLanguage b/extensions/clojure/syntaxes/Clojure.tmLanguage
index bf864640fd1..a94b2dcd1fb 100644
--- a/extensions/clojure/syntaxes/Clojure.tmLanguage
+++ b/extensions/clojure/syntaxes/Clojure.tmLanguage
@@ -7,6 +7,9 @@
 		<string>clj</string>
 		<string>cljs</string>
 		<string>clojure</string>
+		<string>cljc</string>
+		<string>cljx</string>
+		<string>edn</string>
 	</array>
 	<key>foldingStartMarker</key>
 	<string>\(\s*$</string>
diff --git a/extensions/powershell/syntaxes/PowershellSyntax.tmLanguage b/extensions/powershell/syntaxes/PowershellSyntax.tmLanguage
index d9e7c46b125..fb213a2f3df 100644
--- a/extensions/powershell/syntaxes/PowershellSyntax.tmLanguage
+++ b/extensions/powershell/syntaxes/PowershellSyntax.tmLanguage
@@ -7,6 +7,7 @@
 		<string>ps1</string>
 		<string>psm1</string>
 		<string>psd1</string>
+		<string>ps1xml</string>
 	</array>
 	<key>name</key>
 	<string>PowerShell</string>
diff --git a/src/vs/editor/standalone-languages/csharp.ts b/src/vs/editor/standalone-languages/csharp.ts
index 4e8d11d72bd..d145275864a 100644
--- a/src/vs/editor/standalone-languages/csharp.ts
+++ b/src/vs/editor/standalone-languages/csharp.ts
@@ -51,7 +51,7 @@ export var language = <ILanguage> {
 		'internal', 'private', 'abstract', 'sealed', 'static', 'struct', 'readonly',
 		'volatile', 'virtual', 'override', 'params', 'get', 'set', 'add', 'remove',
 		'operator', 'true', 'false', 'implicit', 'explicit', 'interface', 'enum',
-		'null', 'async', 'await'
+		'null', 'async', 'await','fixed','sizeof','stackalloc','unsafe'
 		],
 
 	namespaceFollows: [
diff --git a/src/vs/languages/languages.main.js b/src/vs/languages/languages.main.js
index 761d6a32517..dd015518489 100644
--- a/src/vs/languages/languages.main.js
+++ b/src/vs/languages/languages.main.js
@@ -8,13 +8,13 @@ define([
 	"vs/languages/html/common/html.contribution",
 	"vs/languages/javascript/common/javascript.contribution",
 	"vs/languages/json/common/json.contribution",
+	"vs/languages/less/common/less.contribution",
 	"vs/languages/markdown/common/markdown.contribution",
 	"vs/languages/php/common/php.contribution",
 	"vs/languages/plaintext/common/plaintext.contribution",
 	"vs/languages/razor/common/razor.contribution",
-	"vs/languages/typescript/common/typescript.contribution",
-	"vs/languages/less/common/less.contribution",
-	"vs/languages/sass/common/sass.contribution"
+	"vs/languages/sass/common/sass.contribution",
+	"vs/languages/typescript/common/typescript.contribution"
 ], function() {
 	"use strict";
 });
\ No newline at end of file