diff --git a/opentelemetry-resource-detectors/src/host.rs b/opentelemetry-resource-detectors/src/host.rs
index 64aeff36..febed0d0 100644
--- a/opentelemetry-resource-detectors/src/host.rs
+++ b/opentelemetry-resource-detectors/src/host.rs
@@ -52,6 +52,7 @@ fn host_id_detect() -> Option<String> {
     let dbus_machine_id_path = Path::new("/var/lib/dbus/machine-id");
     read_to_string(machine_id_path)
         .or_else(|_| read_to_string(dbus_machine_id_path))
+        .map(|id| id.trim().to_string())
         .ok()
 }