diff --git a/src/apps/haiku-depot/List.h b/src/apps/haiku-depot/List.h
index 03d1a96edf..68ee613b88 100644
--- a/src/apps/haiku-depot/List.h
+++ b/src/apps/haiku-depot/List.h
@@ -8,6 +8,7 @@
 
 #include <new>
 #include <stdlib.h>
+#include <string.h>
 
 #include <SupportDefs.h>