diff --git a/testing/qa/behave/tools/rpc-proxy/src/main/kotlin/net/corda/behave/service/proxy/CordaRPCProxyClient.kt b/testing/qa/behave/tools/rpc-proxy/src/main/kotlin/net/corda/behave/service/proxy/CordaRPCProxyClient.kt
index 808f16573a..fb2543db21 100644
--- a/testing/qa/behave/tools/rpc-proxy/src/main/kotlin/net/corda/behave/service/proxy/CordaRPCProxyClient.kt
+++ b/testing/qa/behave/tools/rpc-proxy/src/main/kotlin/net/corda/behave/service/proxy/CordaRPCProxyClient.kt
@@ -122,6 +122,10 @@ class CordaRPCProxyClient(private val targetHostAndPort: NetworkHostAndPort) : C
         TODO("not implemented") 
     }
 
+    override fun internalFindVerifiedTransaction(txnId: SecureHash): SignedTransaction? {
+        TODO("not implemented")
+    }
+
     override fun internalVerifiedTransactionsFeed(): DataFeed<List<SignedTransaction>, SignedTransaction> {
         TODO("not implemented") 
     }