diff --git a/gcc/c-common.c b/gcc/c-common.c
index 968d369269e..811d1890160 100644
--- a/gcc/c-common.c
+++ b/gcc/c-common.c
@@ -357,7 +357,7 @@ decl_attributes (decl, attributes)
 #define T_C	&char_type_node
 #define T_V	&void_type_node
 #define T_W	&wchar_type_node
-#define T_ST    &size_type
+#define T_ST    &sizetype
 
 typedef struct {
   char *format_chars;