diff --git a/extensions/grunt/src/main.ts b/extensions/grunt/src/main.ts
index a5e74585e8e48ff40dd71cb1ef89e3e23fc5d2e3..171ca955342479e3f264023aa026922a1731a582 100644
--- a/extensions/grunt/src/main.ts
+++ b/extensions/grunt/src/main.ts
@@ -205,7 +205,6 @@ class TaskDetector {
 
 	private taskProvider: vscode.Disposable | undefined;
 	private detectors: Map<string, FolderDetector> = new Map();
-	private promise: Promise<vscode.Task[]> | undefined;
 
 	constructor() {
 	}
@@ -225,15 +224,12 @@ class TaskDetector {
 			this.taskProvider = undefined;
 		}
 		this.detectors.clear();
-		this.promise = undefined;
 	}
 
 	private updateWorkspaceFolders(added: vscode.WorkspaceFolder[], removed: vscode.WorkspaceFolder[]): void {
-		let changed = false;
 		for (let remove of removed) {
 			let detector = this.detectors.get(remove.uri.toString());
 			if (detector) {
-				changed = true;
 				detector.dispose();
 				this.detectors.delete(remove.uri.toString());
 			}
@@ -241,22 +237,16 @@ class TaskDetector {
 		for (let add of added) {
 			let detector = new FolderDetector(add);
 			if (detector.isEnabled()) {
-				changed = true;
 				this.detectors.set(add.uri.toString(), detector);
 				detector.start();
 			}
 		}
-		if (changed) {
-			this.promise = undefined;
-		}
 		this.updateProvider();
 	}
 
 	private updateConfiguration(): void {
-		let changed = false;
 		for (let detector of this.detectors.values()) {
 			if (!detector.isEnabled()) {
-				changed = true;
 				detector.dispose();
 				this.detectors.delete(detector.workspaceFolder.uri.toString());
 			}
@@ -267,16 +257,12 @@ class TaskDetector {
 				if (!this.detectors.has(folder.uri.toString())) {
 					let detector = new FolderDetector(folder);
 					if (detector.isEnabled()) {
-						changed = true;
 						this.detectors.set(folder.uri.toString(), detector);
 						detector.start();
 					}
 				}
 			}
 		}
-		if (changed) {
-			this.promise = undefined;
-		}
 		this.updateProvider();
 	}
 
@@ -294,15 +280,11 @@ class TaskDetector {
 		else if (this.taskProvider && this.detectors.size === 0) {
 			this.taskProvider.dispose();
 			this.taskProvider = undefined;
-			this.promise = undefined;
 		}
 	}
 
 	public getTasks(): Promise<vscode.Task[]> {
-		if (!this.promise) {
-			this.promise = this.computeTasks();
-		}
-		return this.promise;
+		return this.computeTasks();
 	}
 
 	private computeTasks(): Promise<vscode.Task[]> {
diff --git a/extensions/gulp/src/main.ts b/extensions/gulp/src/main.ts
index 127e07afd647d9dd4956f979187aef5fa4eaf231..38e7a09b996dcd7e611fef0029a842b83f836d53 100644
--- a/extensions/gulp/src/main.ts
+++ b/extensions/gulp/src/main.ts
@@ -177,7 +177,6 @@ class TaskDetector {
 
 	private taskProvider: vscode.Disposable | undefined;
 	private detectors: Map<string, FolderDetector> = new Map();
-	private promise: Promise<vscode.Task[]> | undefined;
 
 	constructor() {
 	}
@@ -197,15 +196,12 @@ class TaskDetector {
 			this.taskProvider = undefined;
 		}
 		this.detectors.clear();
-		this.promise = undefined;
 	}
 
 	private updateWorkspaceFolders(added: vscode.WorkspaceFolder[], removed: vscode.WorkspaceFolder[]): void {
-		let changed = false;
 		for (let remove of removed) {
 			let detector = this.detectors.get(remove.uri.toString());
 			if (detector) {
-				changed = true;
 				detector.dispose();
 				this.detectors.delete(remove.uri.toString());
 			}
@@ -213,22 +209,16 @@ class TaskDetector {
 		for (let add of added) {
 			let detector = new FolderDetector(add);
 			if (detector.isEnabled()) {
-				changed = true;
 				this.detectors.set(add.uri.toString(), detector);
 				detector.start();
 			}
 		}
-		if (changed) {
-			this.promise = undefined;
-		}
 		this.updateProvider();
 	}
 
 	private updateConfiguration(): void {
-		let changed = false;
 		for (let detector of this.detectors.values()) {
 			if (!detector.isEnabled()) {
-				changed = true;
 				detector.dispose();
 				this.detectors.delete(detector.workspaceFolder.uri.toString());
 			}
@@ -239,16 +229,12 @@ class TaskDetector {
 				if (!this.detectors.has(folder.uri.toString())) {
 					let detector = new FolderDetector(folder);
 					if (detector.isEnabled()) {
-						changed = true;
 						this.detectors.set(folder.uri.toString(), detector);
 						detector.start();
 					}
 				}
 			}
 		}
-		if (changed) {
-			this.promise = undefined;
-		}
 		this.updateProvider();
 	}
 
@@ -266,15 +252,11 @@ class TaskDetector {
 		else if (this.taskProvider && this.detectors.size === 0) {
 			this.taskProvider.dispose();
 			this.taskProvider = undefined;
-			this.promise = undefined;
 		}
 	}
 
 	public getTasks(): Promise<vscode.Task[]> {
-		if (!this.promise) {
-			this.promise = this.computeTasks();
-		}
-		return this.promise;
+		return this.computeTasks();
 	}
 
 	private computeTasks(): Promise<vscode.Task[]> {
diff --git a/extensions/jake/src/main.ts b/extensions/jake/src/main.ts
index 7ea6e99e969677479b6394611df959eef0b8072f..31f0b8ff32af6d58503a8d13a820e50d87687ad5 100644
--- a/extensions/jake/src/main.ts
+++ b/extensions/jake/src/main.ts
@@ -182,7 +182,6 @@ class TaskDetector {
 
 	private taskProvider: vscode.Disposable | undefined;
 	private detectors: Map<string, FolderDetector> = new Map();
-	private promise: Promise<vscode.Task[]> | undefined;
 
 	constructor() {
 	}
@@ -202,15 +201,12 @@ class TaskDetector {
 			this.taskProvider = undefined;
 		}
 		this.detectors.clear();
-		this.promise = undefined;
 	}
 
 	private updateWorkspaceFolders(added: vscode.WorkspaceFolder[], removed: vscode.WorkspaceFolder[]): void {
-		let changed = false;
 		for (let remove of removed) {
 			let detector = this.detectors.get(remove.uri.toString());
 			if (detector) {
-				changed = true;
 				detector.dispose();
 				this.detectors.delete(remove.uri.toString());
 			}
@@ -218,22 +214,16 @@ class TaskDetector {
 		for (let add of added) {
 			let detector = new FolderDetector(add);
 			if (detector.isEnabled()) {
-				changed = true;
 				this.detectors.set(add.uri.toString(), detector);
 				detector.start();
 			}
 		}
-		if (changed) {
-			this.promise = undefined;
-		}
 		this.updateProvider();
 	}
 
 	private updateConfiguration(): void {
-		let changed = false;
 		for (let detector of this.detectors.values()) {
 			if (!detector.isEnabled()) {
-				changed = true;
 				detector.dispose();
 				this.detectors.delete(detector.workspaceFolder.uri.toString());
 			}
@@ -244,16 +234,12 @@ class TaskDetector {
 				if (!this.detectors.has(folder.uri.toString())) {
 					let detector = new FolderDetector(folder);
 					if (detector.isEnabled()) {
-						changed = true;
 						this.detectors.set(folder.uri.toString(), detector);
 						detector.start();
 					}
 				}
 			}
 		}
-		if (changed) {
-			this.promise = undefined;
-		}
 		this.updateProvider();
 	}
 
@@ -271,15 +257,11 @@ class TaskDetector {
 		else if (this.taskProvider && this.detectors.size === 0) {
 			this.taskProvider.dispose();
 			this.taskProvider = undefined;
-			this.promise = undefined;
 		}
 	}
 
 	public getTasks(): Promise<vscode.Task[]> {
-		if (!this.promise) {
-			this.promise = this.computeTasks();
-		}
-		return this.promise;
+		return this.computeTasks();
 	}
 
 	private computeTasks(): Promise<vscode.Task[]> {