diff --git a/lib/cmds/blockchain/blockchain.js b/lib/cmds/blockchain/blockchain.js
index 0a1e43cbd..8c50c7538 100644
--- a/lib/cmds/blockchain/blockchain.js
+++ b/lib/cmds/blockchain/blockchain.js
@@ -57,8 +57,9 @@ Blockchain.prototype.runCommand = function(cmd, options) {
   console.log(("running: " + cmd.underline).green);
   return shelljs.exec(cmd, options, (err, stdout, _stderr) => {
     if (err && this.env === 'development' && stdout.indexOf('Failed to unlock developer account') > 0) {
-      console.warn('\nDevelopment blockchain changed to use the --dev option.'.yellow);
-      console.warn('You will need to change your data directory in blockchain.json (datadir)'.yellow);
+      console.warn('\nDevelopment blockchain has changed to use the --dev option.'.yellow);
+      console.warn('You can reset your workspace to fix the problem with'.yellow + ' embark --reset'.cyan);
+      console.warn('Otherwise, you can change your data directory in blockchain.json (datadir)'.yellow);
     }
   });
 };