diff --git a/src/vs/workbench/parts/search/common/queryBuilder.ts b/src/vs/workbench/parts/search/common/queryBuilder.ts
index d0a998f91172d06c9aa1353673670a7c4b5c71c6..af6e5cac833958b9c71b98bc4f1c9bf910480f6e 100644
--- a/src/vs/workbench/parts/search/common/queryBuilder.ts
+++ b/src/vs/workbench/parts/search/common/queryBuilder.ts
@@ -75,12 +75,12 @@ export class QueryBuilder {
 			this.resolveSmartCaseToCaseSensitive(contentPattern);
 		}
 
-		const query = <ISearchQuery>{
+		const query: ISearchQuery = {
 			type,
 			folderQueries,
 			usingSearchPaths: !!(searchPaths && searchPaths.length),
 			extraFileResources: options.extraFileResources,
-			filePattern: options.filePattern,
+			filePattern: options.filePattern.trim(),
 			excludePattern,
 			includePattern,
 			maxResults: options.maxResults,
diff --git a/src/vs/workbench/parts/search/test/common/queryBuilder.test.ts b/src/vs/workbench/parts/search/test/common/queryBuilder.test.ts
index 4ae1b1a4fafcc8117b7b275c6a9318d7460cd24f..6be960c680c145fb6f9c5b1843a276e0d562655f 100644
--- a/src/vs/workbench/parts/search/test/common/queryBuilder.test.ts
+++ b/src/vs/workbench/parts/search/test/common/queryBuilder.test.ts
@@ -236,6 +236,21 @@ suite('QueryBuilder', () => {
 			});
 	});
 
+	test('file pattern trimming', () => {
+		const content = 'content';
+		assertEqualQueries(
+			queryBuilder.text(
+				PATTERN_INFO,
+				undefined,
+				{ filePattern: ` ${content} ` }
+			),
+			<ISearchQuery>{
+				contentPattern: PATTERN_INFO,
+				filePattern: content,
+				type: QueryType.Text
+			});
+	});
+
 	test('exclude ./ syntax', () => {
 		assertEqualQueries(
 			queryBuilder.text(