diff --git a/extensions/json/server/src/jsonCompletion.ts b/extensions/json/server/src/jsonCompletion.ts
index 39f0a79de054075aa664fc89ed008fb56e8da5bf..aea7308cd8482af2522835cdfd9b9efe298119ca 100644
--- a/extensions/json/server/src/jsonCompletion.ts
+++ b/extensions/json/server/src/jsonCompletion.ts
@@ -456,7 +456,7 @@ export class JSONCompletion {
 	private getCurrentWord(document: ITextDocument, offset: number) {
 		var i = offset - 1;
 		var text = document.getText();
-		while (i >= 0 && ' \t\n\r\v"'.indexOf(text.charAt(i)) === -1) {
+		while (i >= 0 && ' \t\n\r\v":{[,'.indexOf(text.charAt(i)) === -1) {
 			i--;
 		}
 		return text.substring(i+1, offset);