diff --git a/src/vs/workbench/parts/debug/common/debugProtocol.d.ts b/src/vs/workbench/parts/debug/common/debugProtocol.d.ts
index 441308e4d3202e63576f5c91b8bba9c9107a88cb..b0e9edcf2ef31d7e0bf21be7dd6d45fb0eed53d5 100644
--- a/src/vs/workbench/parts/debug/common/debugProtocol.d.ts
+++ b/src/vs/workbench/parts/debug/common/debugProtocol.d.ts
@@ -708,6 +708,8 @@ declare module DebugProtocol {
 	}
 	/** Arguments for "completions" request. */
 	export interface CompletionsArguments {
+		/** Returns completions in the scope of this stack frame. If not specified, the completions are returned for the global scope. */
+		frameId?: number;
 		/** One or more source lines. Typically this is the text a user has typed into the debug console before he asked for completion. */
 		text: string;
 		/** The character position for which to determine the completion proposals. */