diff --git a/sql/set_var.cc b/sql/set_var.cc
index 166f280be4e..0ec1f04a370 100644
--- a/sql/set_var.cc
+++ b/sql/set_var.cc
@@ -58,6 +58,9 @@
 #include <my_getopt.h>
 #include <thr_alarm.h>
 #include <myisam.h>
+#ifdef WITH_MARIA_STORAGE_ENGINE
+#include <maria.h>
+#endif
 #include <my_dir.h>
 #include <waiting_threads.h>
 #include "events.h"