diff --git a/lib/dns/tests/master_test.c b/lib/dns/tests/master_test.c
index 3b3de7b119..5412198c50 100644
--- a/lib/dns/tests/master_test.c
+++ b/lib/dns/tests/master_test.c
@@ -25,6 +25,7 @@
 #include <stdio.h>
 #include <unistd.h>
 
+#include <isc/print.h>
 #include <isc/xml.h>
 
 #include <dns/cache.h>