diff --git a/techlibs/gowin/synth_gowin.cc b/techlibs/gowin/synth_gowin.cc
index f35a7af4d..cfc856deb 100644
--- a/techlibs/gowin/synth_gowin.cc
+++ b/techlibs/gowin/synth_gowin.cc
@@ -126,7 +126,6 @@ struct SynthGowinPass : public ScriptPass
 				json_file = args[++argidx];
 				nobram = true;
 				nolutram = true;
-				noalu = true;
 				continue;
 			}
 			if (args[argidx] == "-run" && argidx+1 < args.size()) {