diff --git a/lib/blockchain.js b/lib/blockchain.js
index 9ab37a5c9..950cb7b2e 100644
--- a/lib/blockchain.js
+++ b/lib/blockchain.js
@@ -27,7 +27,9 @@ Blockchain.prototype.generate_basic_command = function() {
     cmd += "--minerthreads \"" + config.minerthreads + "\" ";
   }
 
-  cmd += "--mine ";
+  if(config.mine)
+    cmd += "--mine ";
+  
   if (config.genesisBlock !== void 0) {
     cmd += "--genesis=\"" + config.genesisBlock + "\" ";
   }