diff --git a/include/freetype/internal/psaux.h b/include/freetype/internal/psaux.h
index 41f481d5a..1827219f7 100644
--- a/include/freetype/internal/psaux.h
+++ b/include/freetype/internal/psaux.h
@@ -359,7 +359,7 @@ FT_BEGIN_HEADER
 #define T1_FIELD_CALLBACK( _ident, _name, _dict )       \
           T1_NEW_CALLBACK_FIELD( _ident, _name, _dict )
 
-#define T1_FIELD_ZERO  { 0, NULL, 0, 0, NULL, 0, 0, 0, 0, 0 }
+#define T1_FIELD_ZERO  { 0, NULL, (T1_FieldLocation)0, (T1_FieldType)0, NULL, 0, 0, 0, 0, 0 }
 
 
   /*************************************************************************/