1 files changed, 2 insertions, 0 deletions
diff --git a/vis-lua.c b/vis-lua.c
index a92b186..62c0e4c 100644
--- a/vis-lua.c
+++ b/vis-lua.c
@@ -832,6 +832,8 @@ static int keymap(lua_State *L, Vis *vis, Win *win) {
 			goto err;
 	} else if (lua_isuserdata(L, 4)) {
 		binding->action = obj_ref_check(L, 4, VIS_LUA_TYPE_KEYACTION);
+	} else {
+		goto err;
 	}
 
 	if (win) {