diff --git a/src/client/common/configSettings.ts b/src/client/common/configSettings.ts
index 785e3a4f76df..2fd3daa02ee9 100644
--- a/src/client/common/configSettings.ts
+++ b/src/client/common/configSettings.ts
@@ -112,7 +112,7 @@ export class PythonSettings extends EventEmitter implements IPythonSettings {
     }
     public dispose() {
         // tslint:disable-next-line:no-unsafe-any
-        this.disposables.forEach(disposable => disposable.dispose());
+        this.disposables.forEach(disposable => disposable && disposable.dispose());
         this.disposables = [];
     }
     // tslint:disable-next-line:cyclomatic-complexity max-func-body-length