diff --git a/src/ZGoBackend.hs b/src/ZGoBackend.hs
index cafe0f7..799de62 100644
--- a/src/ZGoBackend.hs
+++ b/src/ZGoBackend.hs
@@ -372,12 +372,7 @@ listCountries :: Action IO [Document]
 listCountries = rest =<< find (select [] "countries")
 
 sendPin ::
-     BS.ByteString
-  -> BS.ByteString
-  -> T.Text
-  -> T.Text
-  -> T.Text
-  -> Action IO String
+     BS.ByteString -> BS.ByteString -> T.Text -> T.Text -> T.Text -> IO String
 sendPin nodeUser nodePwd nodeAddress addr pin = do
   let pd =
         [ Data.Aeson.String nodeAddress
@@ -414,7 +409,7 @@ addUser nodeUser nodePwd p db node (Just tx) = do
   isNew <- liftIO $ isUserNew p db tx
   when isNew $ do
     newPin <- liftIO generatePin
-    _ <- sendPin nodeUser nodePwd node (address tx) (T.pack newPin)
+    _ <- liftIO $ sendPin nodeUser nodePwd node (address tx) (T.pack newPin)
     let pinHash =
           BLK.hash
             [ BA.pack . BS.unpack . C.pack . T.unpack $