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-rw-r--r--passes/hierarchy/hierarchy.cc1
1 files changed, 1 insertions, 0 deletions
diff --git a/passes/hierarchy/hierarchy.cc b/passes/hierarchy/hierarchy.cc
index d27fddf1c..eea6abb04 100644
--- a/passes/hierarchy/hierarchy.cc
+++ b/passes/hierarchy/hierarchy.cc
@@ -1058,6 +1058,7 @@ struct HierarchyPass : public Pass {
if (tmp_top_mod != NULL) {
if (tmp_top_mod != top_mod){
top_mod = tmp_top_mod;
+ top_mod->attributes[ID::initial_top] = RTLIL::Const(1);
did_something = true;
}
}