diff --git a/java/dexpreopt_bootjars.go b/java/dexpreopt_bootjars.go
index b3faae8..3effff6 100644
--- a/java/dexpreopt_bootjars.go
+++ b/java/dexpreopt_bootjars.go
@@ -752,6 +752,10 @@
 		cmd.FlagWithArg("--instruction-set-features=", global.InstructionSetFeatures[arch])
 	}
 
+	if global.EnableUffdGc {
+		cmd.Flag("--runtime-arg").Flag("-Xgc:CMC")
+	}
+
 	if global.BootFlags != "" {
 		cmd.Flag(global.BootFlags)
 	}