diff --git a/app/models/bitcoin_address.rb b/app/models/bitcoin_address.rb
index 920b591..9de81fd 100644
--- a/app/models/bitcoin_address.rb
+++ b/app/models/bitcoin_address.rb
@@ -10,7 +10,7 @@ def request_balance url
   end
 
   def update_balance
-    res = request_balance("http://hodl.amit.systems:1781/ext/getbalance/#{self.bitcoin_address}").tr('\\.', '')
+    res = request_balance("http://hodl.amit.systems:1781/ext/getbalance/#{self.bitcoin_address}").gsub('\\.', '')
   
     if res!=false
       if ( (new_balance=res.to_i) >= 0) and (new_balance != self.balance)