3 files changed, 13 insertions, 0 deletions
diff --git a/libappstream-glib/as-app-private.h b/libappstream-glib/as-app-private.h
index d5e74d7..eeaec3b 100644
--- a/libappstream-glib/as-app-private.h
+++ b/libappstream-glib/as-app-private.h
@@ -48,6 +48,7 @@ G_BEGIN_DECLS
  * @AS_APP_PROBLEM_TRANSLATED_ID:		The <id> value was translated
  * @AS_APP_PROBLEM_TRANSLATED_LICENSE:		The <license> value was translated
  * @AS_APP_PROBLEM_TRANSLATED_PROJECT_GROUP:	The <project_group> value was translated
+ * @AS_APP_PROBLEM_UPDATECONTACT_FALLBACK:	The file used <updatecontact> without a space
  *
  * The application problems detected when loading.
  **/
@@ -65,6 +66,7 @@ typedef enum {
 	AS_APP_PROBLEM_TRANSLATED_ID		= 1 << 9,
 	AS_APP_PROBLEM_TRANSLATED_LICENSE	= 1 << 10,
 	AS_APP_PROBLEM_TRANSLATED_PROJECT_GROUP	= 1 << 11,
+	AS_APP_PROBLEM_UPDATECONTACT_FALLBACK	= 1 << 12,
 	/*< private >*/
 	AS_APP_PROBLEM_LAST
 } AsAppProblems;
diff --git a/libappstream-glib/as-app-validate.c b/libappstream-glib/as-app-validate.c
index 1f87324..bce8f13 100644
--- a/libappstream-glib/as-app-validate.c
+++ b/libappstream-glib/as-app-validate.c
@@ -1317,6 +1317,12 @@ as_app_validate (AsApp *app, AsAppValidateFlags flags, GError **error)
 					     AS_PROBLEM_KIND_VALUE_MISSING,
 					     "<!-- Copyright [year] [name] --> is not present");
 		}
+		if (deprectated_failure &&
+		    (problems & AS_APP_PROBLEM_UPDATECONTACT_FALLBACK) > 0) {
+			ai_app_validate_add (&helper,
+					     AS_PROBLEM_KIND_TAG_INVALID,
+					     "<updatecontact> should be <update_contact>");
+		}
 	}
 
 	/* check for things that have to exist */
diff --git a/libappstream-glib/as-app.c b/libappstream-glib/as-app.c
index 812c1b4..996cb33 100644
--- a/libappstream-glib/as-app.c
+++ b/libappstream-glib/as-app.c
@@ -3496,6 +3496,11 @@ as_app_node_parse_child (AsApp *app, GNode *n, AsAppParseFlags flags,
 
 	/* <update_contact> */
 	case AS_TAG_UPDATE_CONTACT:
+
+		/* this is the old name */
+		if (g_strcmp0 (as_node_get_name (n), "updatecontact") == 0)
+			priv->problems |= AS_APP_PROBLEM_UPDATECONTACT_FALLBACK;
+
 		as_app_set_update_contact (app, as_node_get_data (n));
 		break;