diff --git a/icu4c/source/i18n/alphaindex.cpp b/icu4c/source/i18n/alphaindex.cpp
index 2247a45ff44..d9d69c0b396 100644
--- a/icu4c/source/i18n/alphaindex.cpp
+++ b/icu4c/source/i18n/alphaindex.cpp
@@ -31,7 +31,7 @@
 #include "uhash.h"
 #include "uvector.h"
 
-#include <string>
+//#include <string>
 //#include <iostream>
 U_NAMESPACE_BEGIN