diff --git a/contrib/pg_overexplain/pg_overexplain.c b/contrib/pg_overexplain/pg_overexplain.c
index 5f623e06019..afc34ad5f2f 100644
--- a/contrib/pg_overexplain/pg_overexplain.c
+++ b/contrib/pg_overexplain/pg_overexplain.c
@@ -21,7 +21,10 @@
 #include "utils/builtins.h"
 #include "utils/lsyscache.h"
 
-PG_MODULE_MAGIC;
+PG_MODULE_MAGIC_EXT(
+					.name = "pg_overexplain",
+					.version = PG_VERSION
+);
 
 typedef struct
 {