diff --git a/index.js b/index.js
index 1c5e5d1..7eab03e 100644
--- a/index.js
+++ b/index.js
@@ -185,7 +185,7 @@ function _decodeLogs(logs) {
         ) {
           // ensure to remove leading 0x for hex numbers
           if (typeof decodedP.value === "string" && decodedP.value.startsWith("0x")) {
-            decodedP.value = new BN(decodedP.value.slice(2), 16).toString(10);
+            decodedP.value = new BN(decodedP.value, 16).toString(10);
           } else {
             decodedP.value = new BN(decodedP.value).toString(10);
           }