diff --git a/ui/build/soong.go b/ui/build/soong.go
index 08c2ee1..6a93672 100644
--- a/ui/build/soong.go
+++ b/ui/build/soong.go
@@ -156,6 +156,7 @@
 		cmd.Environment.Set("BAZEL_HOME", filepath.Join(config.BazelOutDir(), "bazelhome"))
 		cmd.Environment.Set("BAZEL_OUTPUT_BASE", filepath.Join(config.BazelOutDir(), "output"))
 		cmd.Environment.Set("BAZEL_WORKSPACE", absPath(ctx, "."))
+		cmd.Environment.Set("BAZEL_METRICS_DIR", config.BazelMetricsDir())
 
 		cmd.Environment.Set("SOONG_SANDBOX_SOONG_BUILD", "true")
 		cmd.Sandbox = soongSandbox