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-rw-r--r--backends/aiger/xaiger.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/backends/aiger/xaiger.cc b/backends/aiger/xaiger.cc
index 6ca24bd7e..e060efece 100644
--- a/backends/aiger/xaiger.cc
+++ b/backends/aiger/xaiger.cc
@@ -471,7 +471,7 @@ struct XAigerWriter
SigBit O = sigmap(b);
if (O != b)
alias_map[O] = b;
- input_bits.erase(b);
+ input_bits.erase(O);
undriven_bits.erase(O);
}
}