diff --git a/libs/surfaces/tranzport/screen.cc b/libs/surfaces/tranzport/screen.cc
index 51062de3ad..0ca9419bd6 100644
--- a/libs/surfaces/tranzport/screen.cc
+++ b/libs/surfaces/tranzport/screen.cc
@@ -18,6 +18,7 @@
  *  
  *   */
 
+#include <cstring>
 #include <tranzport_control_protocol.h>
 
 void