diff --git a/src/commands/detectContextualizers.ts b/src/commands/detectContextualizers.ts
index 50c0a398..f7e62e76 100644
--- a/src/commands/detectContextualizers.ts
+++ b/src/commands/detectContextualizers.ts
@@ -16,9 +16,7 @@ export function registerDetectContextualizersCommand() {
 
         const txResult = contextualizer.contextualize(transaction, true);
         if (!txResult.from) {
-          console.error(
-            `No matching protocol contextualizer on ${transaction.hash}`,
-          );
+          console.error(`No matching contextualizer on ${transaction.hash}`);
         }
 
         console.log('Successfully ran contextualizers');
diff --git a/src/contextualizers/protocol/uniswapV3/uniswapV3Pair.ts b/src/contextualizers/protocol/uniswapV3/uniswapV3Pair.ts
index 549bc3f1..31d3f367 100644
--- a/src/contextualizers/protocol/uniswapV3/uniswapV3Pair.ts
+++ b/src/contextualizers/protocol/uniswapV3/uniswapV3Pair.ts
@@ -57,6 +57,7 @@ export const generate = (transaction: Transaction): Transaction => {
   const sender: string = decoded.args['sender'].toLowerCase();
   const recipient: string = decoded.args['recipient'].toLowerCase();
   const isUniversalRouter =
+    UNIVERSAL_ROUTERS[transaction.chainId] &&
     UNIVERSAL_ROUTERS[transaction.chainId].includes(sender);
   if (
     !transaction.netAssetTransfers[sender] ||