diff --git a/app/models/bitcoin_address.rb b/app/models/bitcoin_address.rb
index bdb3c3e..0058d8d 100644
--- a/app/models/bitcoin_address.rb
+++ b/app/models/bitcoin_address.rb
@@ -9,7 +9,7 @@ def request_balance url
     logger.info("request_balance: #{url}")
     response=Net::HTTP.get(URI.parse(url))
     logger.info("response: #{response}")
-    rem=response.gsub('\\.', '')
+    rem=response.gsub(/\W/, '')
     logger.info("removed: #{rem}")
     
     (Integer(rem) rescue false)