diff --git a/srdl2sv/components/register.py b/srdl2sv/components/register.py
index d66d23b..f146614 100644
--- a/srdl2sv/components/register.py
+++ b/srdl2sv/components/register.py
@@ -142,6 +142,8 @@ class Register(Component):
 
                 for i in self.eval_genvars(vec, 0, self.total_array_dimensions):
                     yield (mux_tuple, i)
+            else:
+                yield(mux_tuple, (mux_tuple[1], ''))
 
     def eval_genvars(self, vec, depth, dimensions):
         for i in range(dimensions[depth]):