diff --git a/Language/Haskell/GhcMod/PkgDoc.hs b/Language/Haskell/GhcMod/PkgDoc.hs
index 5fc4362..a9ee2eb 100644
--- a/Language/Haskell/GhcMod/PkgDoc.hs
+++ b/Language/Haskell/GhcMod/PkgDoc.hs
@@ -19,5 +19,5 @@ pkgDoc cradle mdl = do
     return ret
   where
     toModuleOpts = ["find-module", "--simple-output"] ++ cradlePackageDbOpts cradle ++ [mdl]
-    trim = fst . break (== '\n')
+    trim = takeWhile (/= '\n')