diff --git a/lib/cmds/blockchain/blockchain.js b/lib/cmds/blockchain/blockchain.js
index 7d4d244a5..d19048750 100644
--- a/lib/cmds/blockchain/blockchain.js
+++ b/lib/cmds/blockchain/blockchain.js
@@ -46,6 +46,7 @@ var Blockchain = function(options) {
     vmdebug: this.blockchainConfig.vmdebug || false,
     targetGasLimit: this.blockchainConfig.targetGasLimit || false,
     syncMode: this.blockchainConfig.syncMode,
+    syncmode: this.blockchainConfig.syncmode,
     verbosity: this.blockchainConfig.verbosity
   };
 
diff --git a/lib/cmds/blockchain/geth_commands.js b/lib/cmds/blockchain/geth_commands.js
index 1a785751e..7a12ea05c 100644
--- a/lib/cmds/blockchain/geth_commands.js
+++ b/lib/cmds/blockchain/geth_commands.js
@@ -20,8 +20,8 @@ class GethCommands {
       cmd.push(`--datadir=${config.datadir}`);
     }
 
-    if (config.syncMode) {
-      cmd.push("--syncmode=" + config.syncMode);
+    if (config.syncmode || config.syncMode) {
+      cmd.push("--syncmode=" + config.syncmode || config.syncMode);
     }
 
     if (config.account && config.account.password) {