diff --git a/app/scripts/lib/eth-store.js b/app/scripts/lib/eth-store.js
index 96b4a60f2..773c81d1b 100644
--- a/app/scripts/lib/eth-store.js
+++ b/app/scripts/lib/eth-store.js
@@ -25,6 +25,8 @@ class EthereumStore extends ObservableStore {
     this._blockTracker = opts.blockTracker
     // subscribe to latest block
     this._blockTracker.on('block', this._updateForBlock.bind(this))
+    // blockTracker.currentBlock may be null
+    this._currentBlockNumber = this._blockTracker.currentBlock
   }
 
   //