diff --git a/vhdlpp/expression_stream.cc b/vhdlpp/expression_stream.cc
index 0cd036fc6..a37fea2ed 100644
--- a/vhdlpp/expression_stream.cc
+++ b/vhdlpp/expression_stream.cc
@@ -44,7 +44,8 @@ void ExpAggregate::element_t::write_to_stream(ostream&fd) const
 	    (*cur)->write_to_stream(fd);
       }
 
-      fd << "=>";
+      if(!fields_.empty())
+            fd << "=>";
       val_->write_to_stream(fd);
 }