diff --git a/vvp/class_type.cc b/vvp/class_type.cc
index 8ed59df31..be7a55b5a 100644
--- a/vvp/class_type.cc
+++ b/vvp/class_type.cc
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012-2013 Stephen Williams (steve@icarus.com)
+ * Copyright (c) 2012-2019 Stephen Williams (steve@icarus.com)
  *
  *    This source code is free software; you can redistribute it
  *    and/or modify it in source code form under the terms of the GNU
@@ -441,6 +441,9 @@ void class_type::set_property(size_t idx, const string&name, const string&type,
       } else if (type[0] == 'L') {
 	    size_t wid = strtoul(type.c_str()+1,0,0);
 	    properties_[idx].type = new property_logic(wid);
+      } else if (type[0] == 's' && type[1] == 'L') {
+	    size_t wid = strtoul(type.c_str()+2,0,0);
+	    properties_[idx].type = new property_logic(wid);
       } else {
 	    properties_[idx].type = 0;
       }