diff --git a/tccdbg.c b/tccdbg.c
index bafcecd0..0297cc73 100644
--- a/tccdbg.c
+++ b/tccdbg.c
@@ -1523,7 +1523,7 @@ static int tcc_get_dwarf_info(TCCState *s1, Sym *s)
     retval = debug_type;
     t = s;
     for (;;) {
-        type = t->type.t & ~(VT_STORAGE | VT_CONSTANT | VT_VOLATILE) | VT_VLA;
+        type = t->type.t & ~(VT_STORAGE | VT_CONSTANT | VT_VOLATILE | VT_VLA);
         if ((type & VT_BTYPE) != VT_BYTE)
             type &= ~VT_DEFSIGN;
         if (type == VT_PTR) {