diff --git a/docs/include_package-core.rst b/docs/include_package-core.rst
index ae0008471aa..68d329a5e17 100644
--- a/docs/include_package-core.rst
+++ b/docs/include_package-core.rst
@@ -22,7 +22,7 @@ Module Options
 
 :ref:`transactionPollingTimeout <web3-module-transactionpollingtimeout>`
 
-:ref:`transactionPollingTimeout <web3-module-transactionpollingtimeout>`
+:ref:`transactionSigner <web3-module-transactionSigner>`
 
 -------
 Example
diff --git a/packages/web3-eth/src/signers/TransactionSigner.js b/packages/web3-eth/src/signers/TransactionSigner.js
index da7a057cfb1..4409d2900a0 100644
--- a/packages/web3-eth/src/signers/TransactionSigner.js
+++ b/packages/web3-eth/src/signers/TransactionSigner.js
@@ -47,7 +47,7 @@ export default class TransactionSigner {
             throw new Error('No privateKey given to the TransactionSigner.');
         }
 
-        if (!privateKey.startsWith('0x')) {
+        if (privateKey.startsWith('0x')) {
             privateKey = privateKey.substring(2);
         }