diff --git a/tgt-vhdl/expr.cc b/tgt-vhdl/expr.cc
index bba0d484d..fbb4c7c65 100644
--- a/tgt-vhdl/expr.cc
+++ b/tgt-vhdl/expr.cc
@@ -90,27 +90,14 @@ static vhdl_expr *translate_numeric(vhdl_expr *lhs, vhdl_expr *rhs,
 { 
    int lwidth = lhs->get_type()->get_width();
    int rwidth = rhs->get_type()->get_width();
-
-   vhdl_type ltype(VHDL_TYPE_UNSIGNED, lhs->get_type()->get_msb(),
-                   lhs->get_type()->get_lsb());
-   vhdl_type rtype(VHDL_TYPE_UNSIGNED, rhs->get_type()->get_msb(),
-                   rhs->get_type()->get_lsb());
    
    // May need to resize the left or right hand side
    if (lwidth < rwidth) {
-      vhdl_fcall *resize =
-         new vhdl_fcall("resize", vhdl_type::nsigned(rwidth));
-      resize->add_expr(lhs);
-      resize->add_expr(new vhdl_const_int(rwidth));
-      lhs = resize;
+      lhs = lhs->cast(rhs->get_type());
       lwidth = rwidth;
    }
    else if (rwidth < lwidth) {
-      vhdl_fcall *resize =
-         new vhdl_fcall("resize", vhdl_type::nsigned(lwidth));
-      resize->add_expr(rhs);
-      resize->add_expr(new vhdl_const_int(lwidth));
-      rhs = resize;
+      rhs = rhs->cast(lhs->get_type());
       rwidth = lwidth;
    }
    
diff --git a/tgt-vhdl/vhdl_syntax.cc b/tgt-vhdl/vhdl_syntax.cc
index b07fb2dca..a1934b794 100644
--- a/tgt-vhdl/vhdl_syntax.cc
+++ b/tgt-vhdl/vhdl_syntax.cc
@@ -462,8 +462,18 @@ vhdl_expr::~vhdl_expr()
  */
 vhdl_expr *vhdl_expr::cast(const vhdl_type *to)
 {
-   if (to->get_name() == type_->get_name())
-      return this;
+   if (to->get_name() == type_->get_name()) {
+      if (to->get_width() == type_->get_width())
+         return this;  // Identical
+      else {
+         vhdl_type *rtype = vhdl_type::nsigned(to->get_width());     
+         vhdl_fcall *resize = new vhdl_fcall("Resize", rtype);
+         resize->add_expr(this);
+         resize->add_expr(new vhdl_const_int(to->get_width()));
+
+         return resize;
+      }
+   }
    else if (to->get_name() == VHDL_TYPE_BOOLEAN) {
       // '1' is true all else are false
       vhdl_const_bit *one = new vhdl_const_bit('1');