diff --git a/contrib/epee/src/string_tools.cpp b/contrib/epee/src/string_tools.cpp
index c861cb1d..d04b16b7 100644
--- a/contrib/epee/src/string_tools.cpp
+++ b/contrib/epee/src/string_tools.cpp
@@ -30,6 +30,7 @@
 # include <winsock2.h>
 #else
 # include <arpa/inet.h>
+# include <netinet/in.h>
 #endif
 
 namespace epee