diff --git a/passes/equiv/equiv_purge.cc b/passes/equiv/equiv_purge.cc
index 163b1009b..6987ead35 100644
--- a/passes/equiv/equiv_purge.cc
+++ b/passes/equiv/equiv_purge.cc
@@ -80,7 +80,7 @@ struct EquivPurgeWorker
 			Wire *wire = module->addWire(name, GetSize(sig));
 			wire->port_input = true;
 			module->connect(sig, wire);
-			log("  Module input: %s\n", log_signal(wire));
+			log("  Module input: %s (%s)\n", log_signal(wire), log_signal(sig));
 			return module->addWire(NEW_ID, GetSize(sig));
 		}
 	}