diff --git a/ui/build/build.go b/ui/build/build.go
index c902a0f..0ae06d6 100644
--- a/ui/build/build.go
+++ b/ui/build/build.go
@@ -156,6 +156,11 @@
 
 	SetupPath(ctx, config)
 
+	if config.StartGoma() {
+		// Ensure start Goma compiler_proxy
+		startGoma(ctx, config)
+	}
+
 	if what&BuildProductConfig != 0 {
 		// Run make for product config
 		runMakeProductConfig(ctx, config)