diff --git a/google/auth/compute_engine/__init__.py b/google/auth/compute_engine/__init__.py
index 5c84234e9..7e1206fc1 100644
--- a/google/auth/compute_engine/__init__.py
+++ b/google/auth/compute_engine/__init__.py
@@ -14,8 +14,9 @@
 
 """Google Compute Engine authentication."""
 
+from google.auth.compute_engine._metadata import detect_gce_residency_linux
 from google.auth.compute_engine.credentials import Credentials
 from google.auth.compute_engine.credentials import IDTokenCredentials
 
 
-__all__ = ["Credentials", "IDTokenCredentials"]
+__all__ = ["Credentials", "IDTokenCredentials", "detect_gce_residency_linux"]
diff --git a/system_tests/secrets.tar.enc b/system_tests/secrets.tar.enc
index 22f4e58bf..722dfcd24 100644
Binary files a/system_tests/secrets.tar.enc and b/system_tests/secrets.tar.enc differ