diff --git a/src/core/thread/mle.cpp b/src/core/thread/mle.cpp
index 3eaad5611..0129b59ab 100644
--- a/src/core/thread/mle.cpp
+++ b/src/core/thread/mle.cpp
@@ -1213,7 +1213,8 @@ exit:
 
 void Mle::HandleSendChildUpdateRequest(void *aContext)
 {
-    static_cast<Mle *>(aContext)->SendChildUpdateRequest();
+    Mle *obj = reinterpret_cast<Mle *>(aContext);
+    obj->HandleSendChildUpdateRequest();
 }
 
 void Mle::HandleSendChildUpdateRequest(void)