diff --git a/src/backend/backend.ts b/src/backend/backend.ts
index 532b6cb..344d1a2 100644
--- a/src/backend/backend.ts
+++ b/src/backend/backend.ts
@@ -14,6 +14,12 @@ export interface Stack {
 	line: number;
 }
 
+export interface Variable {
+	name: string;
+	valueStr: string;
+	type: string;
+}
+
 export interface SSHArguments {
 	forwardX11: boolean;
 	host: string;
@@ -46,7 +52,7 @@ export interface IBackend {
 	removeBreakPoint(breakpoint: Breakpoint): Thenable<boolean>;
 	clearBreakPoints(): Thenable<any>;
 	getStack(maxLevels: number): Thenable<Stack[]>;
-	getStackVariables(thread: number, frame: number): Thenable<[string, string][]>;
+	getStackVariables(thread: number, frame: number): Thenable<Variable[]>;
 	evalExpression(name: string): Thenable<any>;
 	isReady(): boolean;
 	changeVariable(name: string, rawValue: string): Thenable<any>;
diff --git a/src/backend/mi2/mi2.ts b/src/backend/mi2/mi2.ts
index f0343cc..2b6cfbf 100644
--- a/src/backend/mi2/mi2.ts
+++ b/src/backend/mi2/mi2.ts
@@ -1,4 +1,4 @@
-import { Breakpoint, IBackend, Stack, SSHArguments } from "../backend.ts"
+import { Breakpoint, IBackend, Stack, SSHArguments, Variable } from "../backend.ts"
 import * as ChildProcess from "child_process"
 import { EventEmitter } from "events"
 import { parseMI, MINode } from '../mi_parse';
@@ -536,15 +536,20 @@ export class MI2 extends EventEmitter implements IBackend {
 		});
 	}
 
-	getStackVariables(thread: number, frame: number): Thenable<[string, string][]> {
+	getStackVariables(thread: number, frame: number): Thenable<Variable[]> {
 		return new Promise((resolve, reject) => {
 			this.sendCommand("stack-list-variables --thread " + thread + " --frame " + frame + " --simple-values").then((result) => {
 				let variables = result.result("variables");
-				let ret: [string, string][] = [];
+				let ret: Variable[] = [];
 				variables.forEach(element => {
 					const key = MINode.valueOf(element, "name");
 					const value = MINode.valueOf(element, "value");
-					ret.push([key, value]);
+					const type = MINode.valueOf(element, "type");
+					ret.push({
+						name: key,
+						valueStr: value,
+						type: type
+					});
 				});
 				resolve(ret);
 			}, reject);
diff --git a/src/mibase.ts b/src/mibase.ts
index ba745bc..13ec0a3 100644
--- a/src/mibase.ts
+++ b/src/mibase.ts
@@ -206,7 +206,7 @@ export class MI2DebugSession extends DebugSession {
 	}
 
 	protected variablesRequest(response: DebugProtocol.VariablesResponse, args: DebugProtocol.VariablesArguments): void {
-		const variables = [];
+		const variables: DebugProtocol.Variable[] = [];
 		const id = this.variableHandles.get(args.variablesReference);
 
 		let createVariable = (arg) => {
@@ -217,24 +217,26 @@ export class MI2DebugSession extends DebugSession {
 			if (id.startsWith("@frame:")) {
 				this.miDebugger.getStackVariables(this.threadID, parseInt(id.substr("@frame:".length))).then(stack => {
 					stack.forEach(variable => {
-						if (variable[1] !== undefined) {
-							let expanded = expandValue(createVariable, "{" + variable[0] + "=" + variable[1] + ")");
-							if (!expanded)
-								new OutputEvent("Could not expand " + variable[1] + "\n", "stderr");
-							else if (typeof expanded[0] == "string")
-								expanded = [
-									{
-										name: "<value>",
-										value: prettyStringArray(expanded),
-										variablesReference: 0
-									}
-								];
-							variables.push(expanded[0]);
+						if (variable.valueStr !== undefined) {
+							let expanded = expandValue(createVariable, "{" + variable.name + "=" + variable.valueStr + ")");
+							if (expanded)
+							{
+								if (typeof expanded[0] == "string")
+									expanded = [
+										{
+											name: "<value>",
+											value: prettyStringArray(expanded),
+											variablesReference: 0
+										}
+									];
+								variables.push(expanded[0]);
+							}
 						} else
 							variables.push({
-								name: variable[0],
+								name: variable.name,
+								type: variable.type,
 								value: "<unknown>",
-								variablesReference: createVariable(variable[0])
+								variablesReference: createVariable(variable.name)
 							});
 					});
 					response.body = {