diff --git a/util/env_windows.cc b/util/env_windows.cc
index 0a48c3fb5..125b82f6f 100644
--- a/util/env_windows.cc
+++ b/util/env_windows.cc
@@ -81,10 +81,7 @@ class ScopedHandle {
 
   ScopedHandle& operator=(const ScopedHandle&) = delete;
 
-  ScopedHandle& operator=(ScopedHandle&& rhs) noexcept {
-    if (this != &rhs) handle_ = rhs.Release();
-    return *this;
-  }
+  ScopedHandle& operator=(ScopedHandle&& rhs) = delete;
 
   bool Close() {
     if (!is_valid()) {