diff --git a/src/utils/background-task.h b/src/utils/background-task.h
index a649dcee2..45b2002fb 100644
--- a/src/utils/background-task.h
+++ b/src/utils/background-task.h
@@ -51,7 +51,7 @@ public:
 
 private:
 	std::string mName;
-	unsigned long mId;
+	unsigned long mId = 0;
 };
 
 LINPHONE_END_NAMESPACE