diff --git a/performance-metrics/src/performance_tests.rs b/performance-metrics/src/performance_tests.rs
index 91507a388..92db54907 100644
--- a/performance-metrics/src/performance_tests.rs
+++ b/performance-metrics/src/performance_tests.rs
@@ -19,6 +19,7 @@ pub const FOCAL_IMAGE_NAME: &str = "focal-server-cloudimg-amd64-custom-20210609-
 #[cfg(target_arch = "aarch64")]
 pub const FOCAL_IMAGE_NAME: &str = "focal-server-cloudimg-arm64-custom-20210929-0-update-tool.raw";
 
+#[allow(dead_code)]
 #[derive(Debug)]
 enum Error {
     BootTimeParse,