diff --git a/src/vs/workbench/api/electron-browser/mainThreadDecorations.ts b/src/vs/workbench/api/electron-browser/mainThreadDecorations.ts
index 82c2e7fea3e..09118ecfa68 100644
--- a/src/vs/workbench/api/electron-browser/mainThreadDecorations.ts
+++ b/src/vs/workbench/api/electron-browser/mainThreadDecorations.ts
@@ -35,7 +35,7 @@ export class MainThreadDecorations implements MainThreadDecorationsShape {
 			label,
 			onDidChange: emitter.event,
 			provideDecorations: (uri) => {
-				return this._proxy.$providerDecorations(handle, uri).then(data => {
+				return this._proxy.$provideDecorations(handle, uri).then(data => {
 					if (!data) {
 						return undefined;
 					}
diff --git a/src/vs/workbench/api/node/extHost.protocol.ts b/src/vs/workbench/api/node/extHost.protocol.ts
index ed498be9850..4ef64fdb735 100644
--- a/src/vs/workbench/api/node/extHost.protocol.ts
+++ b/src/vs/workbench/api/node/extHost.protocol.ts
@@ -721,7 +721,7 @@ export interface ExtHostDebugServiceShape {
 export type DecorationData = [number, boolean, string, string, ThemeColor, string];
 
 export interface ExtHostDecorationsShape {
-	$providerDecorations(handle: number, uri: UriComponents): TPromise<DecorationData>;
+	$provideDecorations(handle: number, uri: UriComponents): TPromise<DecorationData>;
 }
 
 export interface ExtHostWindowShape {
diff --git a/src/vs/workbench/api/node/extHostDecorations.ts b/src/vs/workbench/api/node/extHostDecorations.ts
index 9581bfc5bc9..cdbfc5e482c 100644
--- a/src/vs/workbench/api/node/extHostDecorations.ts
+++ b/src/vs/workbench/api/node/extHostDecorations.ts
@@ -38,7 +38,7 @@ export class ExtHostDecorations implements ExtHostDecorationsShape {
 		});
 	}
 
-	$providerDecorations(handle: number, data: UriComponents): TPromise<DecorationData> {
+	$provideDecorations(handle: number, data: UriComponents): TPromise<DecorationData> {
 		const provider = this._provider.get(handle);
 		return asWinJsPromise(token => provider.provideDecoration(URI.revive(data), token)).then(data => {
 			return data && <DecorationData>[data.priority, data.bubble, data.title, data.abbreviation, data.color, data.source];