diff --git a/sys/geom/geom_dev.c b/sys/geom/geom_dev.c
index ef9ecf1158fc..65ae7228679d 100644
--- a/sys/geom/geom_dev.c
+++ b/sys/geom/geom_dev.c
@@ -81,6 +81,7 @@ g_dev_print(void)
 {
 	struct g_geom *gp;
 
+	g_waitidle();
 	if (LIST_EMPTY(&g_dev_class.geom))
 		return (0);
 	printf("List of GEOM disk devices:\n  ");