diff --git a/app/flatpak-builtins-repo.c b/app/flatpak-builtins-repo.c
index c38d49bdd0..d116530a4d 100644
--- a/app/flatpak-builtins-repo.c
+++ b/app/flatpak-builtins-repo.c
@@ -41,7 +41,7 @@ print_info (GVariant *meta)
   const char *collection_id;
   const char *default_branch;
   const char *redirect_url;
-  const char *redirect_collection_id;
+  const char *deploy_collection_id;
   g_autoptr(GVariant) gpg_keys = NULL;
 
   if (g_variant_lookup (meta, "xa.title", "&s", &title))
@@ -56,8 +56,13 @@ print_info (GVariant *meta)
   if (g_variant_lookup (meta, "xa.redirect-url", "&s", &redirect_url))
     g_print (_("Redirect URL: %s\n"), redirect_url);
 
-  if (g_variant_lookup (meta, "xa.collection-id", "&s", &redirect_collection_id))
-    g_print (_("Redirect collection ID: %s\n"), redirect_collection_id);
+/* FIXME: Remove this check when we depend on ostree 2018.9 */
+#ifndef OSTREE_META_KEY_DEPLOY_COLLECTION_ID
+#define OSTREE_META_KEY_DEPLOY_COLLECTION_ID "ostree.deploy-collection-id"
+#endif
+
+  if (g_variant_lookup (meta, OSTREE_META_KEY_DEPLOY_COLLECTION_ID, "&s", &deploy_collection_id))
+    g_print (_("Deploy collection ID: %s\n"), deploy_collection_id);
 
   if ((gpg_keys = g_variant_lookup_value (meta, "xa.gpg-keys", G_VARIANT_TYPE_BYTESTRING)) != NULL)
     {
diff --git a/common/flatpak-dir.c b/common/flatpak-dir.c
index eb69225d1b..70aad25b30 100644
--- a/common/flatpak-dir.c
+++ b/common/flatpak-dir.c
@@ -11502,6 +11502,11 @@ flatpak_dir_update_remote_configuration_for_state (FlatpakDir         *self,
                                                    GCancellable       *cancellable,
                                                    GError            **error)
 {
+/* FIXME: Remove this check when we depend on ostree 2018.9 */
+#ifndef OSTREE_META_KEY_DEPLOY_COLLECTION_ID
+#define OSTREE_META_KEY_DEPLOY_COLLECTION_ID "ostree.deploy-collection-id"
+#endif
+
   /* We only support those configuration parameters that can
      be set in the server when building the repo (see the
      flatpak_repo_set_* () family of functions) */
@@ -11510,7 +11515,7 @@ flatpak_dir_update_remote_configuration_for_state (FlatpakDir         *self,
     "xa.default-branch",
     "xa.gpg-keys",
     "xa.redirect-url",
-    "xa.collection-id",
+    OSTREE_META_KEY_DEPLOY_COLLECTION_ID,
     NULL
   };
 
@@ -11553,7 +11558,7 @@ flatpak_dir_update_remote_configuration_for_state (FlatpakDir         *self,
                     {
                       if (strcmp (key, "xa.redirect-url") == 0)
                         g_ptr_array_add (updated_params, g_strdup ("url"));
-                      else if (strcmp (key, "xa.collection-id") == 0)
+                      else if (strcmp (key, OSTREE_META_KEY_DEPLOY_COLLECTION_ID) == 0)
                         g_ptr_array_add (updated_params, g_strdup ("collection-id"));
                       else
                         g_ptr_array_add (updated_params, g_strdup (key));
diff --git a/common/flatpak-utils.c b/common/flatpak-utils.c
index 875887cf83..1a01690920 100644
--- a/common/flatpak-utils.c
+++ b/common/flatpak-utils.c
@@ -2941,11 +2941,12 @@ populate_commit_data_cache (GVariant   *metadata,
  * but kept for backwards compatibility).
  *
  * Note that there are two keys for the collection ID: collection-id, and
- * xa.collection-id. If a client does not currently have a collection ID configured
- * for this remote, it will *only* update its configuration from xa.collection-id.
- * This allows phased deployment of collection-based repositories. Clients will
- * only update their configuration from an unset to a set collection ID once
- * (otherwise the security properties of collection IDs are broken). */
+ * ostree.deploy-collection-id. If a client does not currently have a
+ * collection ID configured for this remote, it will *only* update its
+ * configuration from ostree.deploy-collection-id.  This allows phased
+ * deployment of collection-based repositories. Clients will only update their
+ * configuration from an unset to a set collection ID once (otherwise the
+ * security properties of collection IDs are broken). */
 gboolean
 flatpak_repo_update (OstreeRepo   *repo,
                      const char  **gpg_key_ids,
@@ -3002,8 +3003,13 @@ flatpak_repo_update (OstreeRepo   *repo,
     g_variant_builder_add (&builder, "{sv}", "xa.default-branch",
                            g_variant_new_string (default_branch));
 
+/* FIXME: Remove this check when we depend on ostree 2018.9 */
+#ifndef OSTREE_META_KEY_DEPLOY_COLLECTION_ID
+#define OSTREE_META_KEY_DEPLOY_COLLECTION_ID "ostree.deploy-collection-id"
+#endif
+
   if (deploy_collection_id && collection_id != NULL)
-    g_variant_builder_add (&builder, "{sv}", "xa.collection-id",
+    g_variant_builder_add (&builder, "{sv}", OSTREE_META_KEY_DEPLOY_COLLECTION_ID,
                            g_variant_new_string (collection_id));
   else if (deploy_collection_id)
     g_debug ("Ignoring deploy-collection-id=true because no collection ID is set.");
diff --git a/tests/test-update-remote-configuration.sh b/tests/test-update-remote-configuration.sh
index 4b6c1e2203..be21f568eb 100755
--- a/tests/test-update-remote-configuration.sh
+++ b/tests/test-update-remote-configuration.sh
@@ -86,10 +86,10 @@ echo "ok 2 update repo config to deploy collection ID"
 #for ref in app/org.test.App/x86_64/master app/org.test.Hello/x86_64/master appstream/x86_64 ostree-metadata runtime/org.test.Platform/x86_64/master; do
 #  ostree --repo=repos/test refs --collections --create=org.test.Collection:$ref $ref
 #done
-ostree --repo=repos/test summary --update --add-metadata="xa.collection-id='net.malicious.NewCollection'"
+ostree --repo=repos/test summary --update --add-metadata="ostree.deploy-collection-id='net.malicious.NewCollection'"
 ${FLATPAK} ${U} update org.test.App master
 
 assert_file_has_content ${FL_DIR}/repo/config '^collection-id=org.test.Collection$'
 assert_not_file_has_content ${FL_DIR}/repo/config '^collection-id=net.malicious.NewCollection$'
 
-echo "ok 3 update repo config to with different collection ID"
+echo "ok 3 update repo config with different collection ID"