diff --git a/drivers/Timeout.cpp b/drivers/Timeout.cpp
index 40c7d9f0533..6fc4a7e69bf 100644
--- a/drivers/Timeout.cpp
+++ b/drivers/Timeout.cpp
@@ -18,7 +18,9 @@
 namespace mbed {
 
 void Timeout::handler() {
-    _function.call();
+    Callback<void()> local = _function;
+    detach();
+    local.call();
 }
 
 } // namespace mbed