diff --git a/gscholar-rss.cabal b/gscholar-rss.cabal
--- a/gscholar-rss.cabal
+++ b/gscholar-rss.cabal
@@ -1,5 +1,5 @@
 name:                gscholar-rss
-version:             0.2.0.0
+version:             0.2.1.0
 synopsis:            scrapes google scholar, provides RSS feed
 description:         A simple Google Scholar scraper, providing RSS/Atom
                      feeds. Check homepage for manual and examples.
diff --git a/src/Main.hs b/src/Main.hs
--- a/src/Main.hs
+++ b/src/Main.hs
@@ -17,6 +17,7 @@
 import qualified Data.Text.Encoding as TE
 import qualified Data.String        as DS
 import qualified Text.URI           as U
+import qualified Data.List          as L
 
 
 main :: IO ()
@@ -104,8 +105,7 @@
 -- removes 'ots' and 'sig' from a google books url
 cleanGBooks :: URL -> URL
 cleanGBooks url
-        | U.uriRegName uri ==
-            Just "books.google.it" =
+        | condA =
             let
                 qry = U.uriQueryItems uri
                 fqr = filter filtFun qry
@@ -117,6 +117,11 @@
           uri = maybe (error "gclean: misparse")
                       id
                       (U.parseURI $ T.unpack url)
+
+          condA = let rn = maybe (error "regname") id
+                                 (U.uriRegName uri)
+                  in L.isPrefixOf "books.google" rn
+
           filtFun :: (String, String) -> Bool
           filtFun (l, _) = not (elem l ["ots", "sig"])