diff --git a/CHANGELOG.md b/CHANGELOG.md
index 314f2a757..78f035a0a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## [4.2.41] - 2024.8.30
+
+### Fixed
+
+- EOS prefix slash missing
+
 ## [4.2.40] - 2024.8.25
 
 ### Fixed
diff --git a/package.json b/package.json
index 8ab93903c..8c937af92 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@tatumio/tatum",
-  "version": "4.2.40",
+  "version": "4.2.41",
   "description": "Tatum JS SDK",
   "author": "Tatum",
   "repository": "https://github.com/tatumio/tatum-js",
diff --git a/src/util/constant.ts b/src/util/constant.ts
index 3d826b381..c3cade2f0 100644
--- a/src/util/constant.ts
+++ b/src/util/constant.ts
@@ -340,7 +340,7 @@ export const Constant = {
     BASE: 'https://api.shasta.trongrid.io',
     RPC: 'https://api.shasta.trongrid.io/jsonrpc',
   },
-  EOS_PREFIX: 'v1/chain/',
+  EOS_PREFIX: '/v1/chain/',
   BEACON_PREFIX: '/eth/v1/beacon',
   BEACON_BASE_PREFIX: '/eth/v1',
 }