1 files changed, 2 insertions, 1 deletions

diff --git a/lobject.h b/lobject.h
index 1cc8e757..470b17d5 100644
--- a/lobject.h
+++ b/lobject.h
@@ -570,10 +570,11 @@ typedef struct Proto {
 #define LUA_VCCL        makevariant(LUA_TFUNCTION, 2)  /* C closure */
 
 #define ttisfunction(o)         checktype(o, LUA_TFUNCTION)
-#define ttisclosure(o)          ((rawtt(o) & 0x1F) == LUA_VLCL)
 #define ttisLclosure(o)         checktag((o), ctb(LUA_VLCL))
 #define ttislcf(o)              checktag((o), LUA_VLCF)
 #define ttisCclosure(o)         checktag((o), ctb(LUA_VCCL))
+#define ttisclosure(o)         (ttisLclosure(o) || ttisCclosure(o))
+
 
 #define isLfunction(o)  ttisLclosure(o)