diff --git a/sql/field.cc b/sql/field.cc
index 71e90fb5bdf..52f260e7b2d 100644
--- a/sql/field.cc
+++ b/sql/field.cc
@@ -8487,8 +8487,8 @@ create_field::create_field(Field *old_field,Field *orig_field)
   else
     interval=0;
   def=0;
-  if (!(flags & NO_DEFAULT_VALUE_FLAG) &&
-      !old_field->is_real_null() && ! (flags & BLOB_FLAG) &&
+  if (!(flags & (NO_DEFAULT_VALUE_FLAG | BLOB_FLAG)) &&
+      !old_field->is_real_null() &&
       old_field->ptr && orig_field)
   {
     char buff[MAX_FIELD_WIDTH],*pos;