diff --git a/src/alert-prelude.c b/src/alert-prelude.c
index a875da40af..cc04ad48d0 100644
--- a/src/alert-prelude.c
+++ b/src/alert-prelude.c
@@ -50,6 +50,7 @@
 #include "util-time.h"
 #include "util-debug.h"
 #include "util-error.h"
+#include "util-print.h"
 
 #include "output.h"
 #include "util-privs.h"