diff --git a/examples/libs/utility/URLFetcher.hpp b/examples/libs/utility/URLFetcher.hpp
index 1ea7106d..69fb1bce 100644
--- a/examples/libs/utility/URLFetcher.hpp
+++ b/examples/libs/utility/URLFetcher.hpp
@@ -8,9 +8,9 @@
 #include <iostream>
 #endif
 
+#include <mutex>
 #include <string>
 #include <vector>
-#include <mutex>
 
 namespace threepp::utils {
 
@@ -60,4 +60,4 @@ namespace threepp::utils {
 
 }// namespace threepp::utils
 
-#endif//THREEPP_URLFETCHER_HPP
\ No newline at end of file
+#endif//THREEPP_URLFETCHER_HPP