diff --git a/backends/smt2/smtbmc.py b/backends/smt2/smtbmc.py
index e43ed8855..70e6ae6fd 100644
--- a/backends/smt2/smtbmc.py
+++ b/backends/smt2/smtbmc.py
@@ -338,7 +338,7 @@ def get_constr_expr(db, state, final=False, getvalues=False):
         if state not in db:
             return ([], [], []) if getvalues else "true"
 
-    netref_regex = re.compile(r'(^|[( ])\[(-?[0-9]+:|)([^\]]*)\](?=[ )]|$)')
+    netref_regex = re.compile(r'(^|[( ])\[(-?[0-9]+:|)([^\]]*|\S*)\](?=[ )]|$)')
 
     def replace_netref(match):
         state_sel = match.group(2)