diff --git a/metropolis/installer/BUILD.bazel b/metropolis/installer/BUILD.bazel
index 400b98e..3b4144c 100644
--- a/metropolis/installer/BUILD.bazel
+++ b/metropolis/installer/BUILD.bazel
@@ -44,7 +44,7 @@
     name = "installer-release-info",
     os_id = "metropolis-installer",
     os_name = "Metropolis Installer",
-    stamp_var = "STABLE_METROPOLIS_version",
+    stamp_var = "STABLE_MONOGON_metropolis_version",
 )
 
 efi_unified_kernel_image(
diff --git a/metropolis/node/BUILD.bazel b/metropolis/node/BUILD.bazel
index f207107..ba5103c 100644
--- a/metropolis/node/BUILD.bazel
+++ b/metropolis/node/BUILD.bazel
@@ -198,5 +198,5 @@
     name = "os-release-info",
     os_id = "metropolis-node",
     os_name = "Metropolis Node",
-    stamp_var = "STABLE_METROPOLIS_version",
+    stamp_var = "STABLE_MONOGON_metropolis_version",
 )