diff --git a/src/rpc/virnetservermdns.c b/src/rpc/virnetservermdns.c
index 68d5e4eae52830fcfd7737cbcd98f464b76bd7f4..4b3c19a528f080f852679c0ecde23368c6f3ca49 100644
--- a/src/rpc/virnetservermdns.c
+++ b/src/rpc/virnetservermdns.c
@@ -45,6 +45,7 @@
 #include "viralloc.h"
 #include "virerror.h"
 #include "virlog.h"
+#include "virstring.h"
 
 #define VIR_FROM_THIS VIR_FROM_RPC