diff --git a/src/hotspot/share/utilities/stringUtils.hpp b/src/hotspot/share/utilities/stringUtils.hpp
index 754624a6540..eb320f5fda9 100644
--- a/src/hotspot/share/utilities/stringUtils.hpp
+++ b/src/hotspot/share/utilities/stringUtils.hpp
@@ -27,6 +27,8 @@
 
 #include "memory/allStatic.hpp"
 
+#include <string.h>
+
 class StringUtils : AllStatic {
 public:
   // Replace the substring <from> with another string <to>. <to> must be