diff --git a/src/validation-chain.c b/src/validation-chain.c
index 96f36f87..16d236af 100644
--- a/src/validation-chain.c
+++ b/src/validation-chain.c
@@ -36,7 +36,6 @@
  */
 
 #include <unbound.h>
-#include <unbound-event.h>
 #include <ldns/ldns.h>
 #include <getdns/getdns.h>
 #include "context.h"