diff --git a/testing/mozharness/external_tools/performance-artifact-schema.json b/testing/mozharness/external_tools/performance-artifact-schema.json
index 7e6408412782..e723662fe4a4 100644
--- a/testing/mozharness/external_tools/performance-artifact-schema.json
+++ b/testing/mozharness/external_tools/performance-artifact-schema.json
@@ -40,6 +40,12 @@
                     "title": "Subtest name",
                     "type": "string"
                 },
+                "publicName": {
+                    "title": "Public subtest name",
+                    "description": "Allows renaming test's name, without breaking existing performance data series",
+                    "maxLength": 30,
+                    "type": "string"
+                },
                 "value": {
                     "description": "Summary value for subtest",
                     "title": "Subtest value",
@@ -104,6 +110,12 @@
                     "title": "Suite name",
                     "type": "string"
                 },
+                "publicName": {
+                    "title": "Public suite name",
+                    "description": "Allows renaming suite's name, without breaking existing performance data series",
+                    "maxLength": 30,
+                    "type": "string"
+                },
                 "extraOptions": {
                     "type": "array",
                     "title": "Extra options used in running suite",