diff --git a/client/hostinfo_unix.C b/client/hostinfo_unix.C
index f9d3841d77..9163e2b73c 100644
--- a/client/hostinfo_unix.C
+++ b/client/hostinfo_unix.C
@@ -63,6 +63,7 @@
 #include "filesys.h"
 #include "error_numbers.h"
 #include "util.h"
+#include "client_state.h"
 
 // functions to get name/addr of local host