diff --git a/src/serialization/sb2.js b/src/serialization/sb2.js
index 0907d5793..9063bcf2d 100644
--- a/src/serialization/sb2.js
+++ b/src/serialization/sb2.js
@@ -521,7 +521,6 @@ const parseBlock = function (sb2block, addBroadcastMsg, getVariableId, extension
     const index = blockMetadata.opcode.indexOf('_');
     const prefix = blockMetadata.opcode.substring(0, index);
     if (CORE_EXTENSIONS.indexOf(prefix) === -1) {
-        console.log(prefix);
         extensions.extensionIDs.add(prefix);
     }