diff --git a/plluaapi.c b/plluaapi.c
index f24cd0c..3e3513d 100644
--- a/plluaapi.c
+++ b/plluaapi.c
@@ -38,7 +38,7 @@ typedef struct luaP_Info {
 /* extended type info */
 typedef struct luaP_Typeinfo {
   int oid;
-  int2 len;
+  int16 len;
   char type;
   char align;
   bool byval;