diff --git a/dmd2/mtype.c b/dmd2/mtype.c
index 7c9abf6b..685477f9 100644
--- a/dmd2/mtype.c
+++ b/dmd2/mtype.c
@@ -126,7 +126,7 @@ Type *Type::tvoidptr;
 Type *Type::tstring;
 Type *Type::basic[TMAX];
 unsigned char Type::mangleChar[TMAX];
-unsigned char Type::sizeTy[TMAX];
+unsigned short Type::sizeTy[TMAX];
 StringTable Type::stringtable;
 
 #if IN_LLVM
diff --git a/dmd2/mtype.h b/dmd2/mtype.h
index d7a380c5..bb2e0e19 100644
--- a/dmd2/mtype.h
+++ b/dmd2/mtype.h
@@ -216,7 +216,7 @@ struct Type : Object
 
     static Type *basic[TMAX];
     static unsigned char mangleChar[TMAX];
-    static unsigned char sizeTy[TMAX];
+    static unsigned short sizeTy[TMAX];
     static StringTable stringtable;
 #if IN_LLVM
     static StringTable deco_stringtable;