diff --git a/lib/api/middlewares/metrics.js b/lib/api/middlewares/metrics.js
index b51ddba8..084c353f 100644
--- a/lib/api/middlewares/metrics.js
+++ b/lib/api/middlewares/metrics.js
@@ -104,7 +104,7 @@ function getTemplateHash ({ res }) {
         let templateHash;
 
         try {
-            templateHash = res.locals.mapConfigProvider.getTemplateHash();
+            templateHash = res.locals.mapConfigProvider.getTemplateHash().substring(0, 8);
         } catch (e) {}
 
         return templateHash;