diff --git a/vhdlpp/architec_elaborate.cc b/vhdlpp/architec_elaborate.cc
index 3ffc8c6da..c255df43a 100644
--- a/vhdlpp/architec_elaborate.cc
+++ b/vhdlpp/architec_elaborate.cc
@@ -41,6 +41,24 @@ int Architecture::elaborate(Entity*entity)
 	    cur->second->val->elaborate_expr(entity, this, cur->second->typ);
       }
 
+        // Elaborate initializer expressions for signals & variables
+      for (map<perm_string,Signal*>::iterator cur = old_signals_.begin()
+		 ; cur != old_signals_.end() ; ++cur) {
+	    cur->second->elaborate_init_expr(entity, this);
+      }
+      for (map<perm_string,Signal*>::iterator cur = new_signals_.begin()
+		 ; cur != new_signals_.end() ; ++cur) {
+	    cur->second->elaborate_init_expr(entity, this);
+      }
+      for (map<perm_string,Variable*>::iterator cur = old_variables_.begin()
+		 ; cur != old_variables_.end() ; ++cur) {
+	    cur->second->elaborate_init_expr(entity, this);
+      }
+      for (map<perm_string,Variable*>::iterator cur = new_variables_.begin()
+		 ; cur != new_variables_.end() ; ++cur) {
+	    cur->second->elaborate_init_expr(entity, this);
+      }
+
       for (list<Architecture::Statement*>::iterator cur = statements_.begin()
 		 ; cur != statements_.end() ; ++cur) {
 
diff --git a/vhdlpp/vsignal.cc b/vhdlpp/vsignal.cc
index 59cf3774b..a53d6bf36 100644
--- a/vhdlpp/vsignal.cc
+++ b/vhdlpp/vsignal.cc
@@ -27,27 +27,36 @@ using namespace std;
 SigVarBase::SigVarBase(perm_string nam, const VType*typ, Expression*exp)
 : name_(nam), type_(typ), init_expr_(exp), refcnt_sequ_(0)
 {
-    if(init_expr_)
-    {
+}
+
+SigVarBase::~SigVarBase()
+{
+}
+
+void SigVarBase::elaborate_init_expr(Entity*ent, Architecture*arc)
+{
+    if(init_expr_) {
       // convert the initializing string to bitstring if applicable
-      const ExpString *string = dynamic_cast<const ExpString*>(init_expr_);
+      const ExpString*string = dynamic_cast<const ExpString*>(init_expr_);
       if(string) {
         const std::vector<char>& val = string->get_value();
         char buf[val.size() + 1];
         std::copy(val.begin(), val.end(), buf);
         buf[val.size()] = 0;
 
-        ExpBitstring *bitstring = new ExpBitstring(buf);
+        ExpBitstring*bitstring = new ExpBitstring(buf);
         delete init_expr_;
         init_expr_ = bitstring;
       }
+      else {
+        ExpAggregate*aggr = dynamic_cast<ExpAggregate*>(init_expr_);
+        if(aggr) {
+          aggr->elaborate_expr(ent, arc, peek_type());
+        }
+      }
     }
 }
 
-SigVarBase::~SigVarBase()
-{
-}
-
 void SigVarBase::type_elaborate_(VType::decl_t&decl)
 {
       decl.type = type_;
diff --git a/vhdlpp/vsignal.h b/vhdlpp/vsignal.h
index 3e2be389c..9d97e3b0f 100644
--- a/vhdlpp/vsignal.h
+++ b/vhdlpp/vsignal.h
@@ -41,6 +41,9 @@ class SigVarBase : public LineInfo {
 
       void dump(ostream&out, int indent = 0) const;
 
+	// Elaborates initializer expressions if needed.
+      void elaborate_init_expr(Entity*ent, Architecture*arc);
+
     protected:
       perm_string peek_name_() const { return name_; }
       unsigned peek_refcnt_sequ_() const { return refcnt_sequ_; }