From 6ab16c2dc2db896f7ea98850c3a4019337aa6dbf Mon Sep 17 00:00:00 2001
From: kclowes <kclowes@users.noreply.github.com>
Date: Mon, 13 Sep 2021 14:24:04 -0600
Subject: [PATCH] Add newsfragment, one more clarification

---
 newsfragments/2146.doc.rst | 1 +
 web3/contract.py           | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)
 create mode 100644 newsfragments/2146.doc.rst

diff --git a/newsfragments/2146.doc.rst b/newsfragments/2146.doc.rst
new file mode 100644
index 0000000000..f66b35cc11
--- /dev/null
+++ b/newsfragments/2146.doc.rst
@@ -0,0 +1 @@
+Clarify some contract ``ValueError`` error messages.
diff --git a/web3/contract.py b/web3/contract.py
index d3ff8dfd22..2dc7e89290 100644
--- a/web3/contract.py
+++ b/web3/contract.py
@@ -689,7 +689,7 @@ def check_forbidden_keys_in_transaction(
     ) -> None:
         keys_found = set(transaction.keys()) & set(forbidden_keys)
         if keys_found:
-            raise ValueError("Cannot set '{}' field in transaction".format(', '.join(keys_found)))
+            raise ValueError("Cannot set '{}' field(s) in transaction".format(', '.join(keys_found)))
 
 
 class ConciseMethod: