diff --git a/t-dll-expr.cc b/t-dll-expr.cc
index 128830a44..e4dcbf289 100644
--- a/t-dll-expr.cc
+++ b/t-dll-expr.cc
@@ -351,6 +351,7 @@ void dll_target::expr_select(const NetESelect*net)
 
       expr_ = (ivl_expr_t)calloc(1, sizeof(struct ivl_expr_s));
       assert(expr_);
+      FILE_NAME(expr_, net);
 
       expr_->type_ = IVL_EX_SELECT;
       expr_->value_= IVL_VT_VECTOR;
diff --git a/t-dll.cc b/t-dll.cc
index 1e9a28602..45d7851d7 100644
--- a/t-dll.cc
+++ b/t-dll.cc
@@ -2147,6 +2147,7 @@ bool dll_target::part_select(const NetPartSelect*net)
 	    obj->type = IVL_LPM_PART_PV;
 	    break;
       }
+      FILE_NAME(obj, net);
       obj->name = net->name(); // NetPartSelect names are permallocated.
       assert(net->scope());
       obj->scope = find_scope(des_, net->scope());