diff --git a/src/express/common/milestone-utils.js b/src/express/common/milestone-utils.js
index dd476781..d104a82d 100644
--- a/src/express/common/milestone-utils.js
+++ b/src/express/common/milestone-utils.js
@@ -558,7 +558,7 @@ export async function fetchAndValidateSameHeightBlocks(
   )
 
   // Return blocks from cluster 2 as it will be considered canonical
-  if (type == 'base') {
+  if (type === 'base') {
     return latestBlockCluster2
   }