diff --git a/ghc-hs-bibutils.spec b/ghc-hs-bibutils.spec
index a0f6e36..8dc718a 100644
--- a/ghc-hs-bibutils.spec
+++ b/ghc-hs-bibutils.spec
@@ -11,7 +11,6 @@ License:        GPL+
 Url:            https://hackage.haskell.org/package/%{pkg_name}
 Source0:        https://hackage.haskell.org/package/%{pkg_name}-%{version}/%{pkg_name}-%{version}.tar.gz
 Patch1:         hs-bibutils-pkgconfig.patch
-Patch2:         hs-bibutils-4.17-cbits-cabal.patch
 
 BuildRequires:  ghc-Cabal-devel
 BuildRequires:  ghc-rpm-macros
@@ -44,7 +43,6 @@ This package provides the Haskell %{pkg_name} library development files.
 %prep
 %setup -q -n %{pkg_name}-%{version}
 %patch1 -p1 -b .orig~
-%patch2 -p1 -b .cbit-2~
 
 # remove copylib
 rm -r bibutils
diff --git a/hs-bibutils-4.17-cbits-cabal.patch b/hs-bibutils-4.17-cbits-cabal.patch
deleted file mode 100644
index 2a84ead..0000000
--- a/hs-bibutils-4.17-cbits-cabal.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- hs-bibutils-4.17/hs-bibutils.cabal~	2013-03-12 22:35:55.307903389 +0900
-+++ hs-bibutils-4.17/hs-bibutils.cabal	2013-03-23 16:21:10.649154612 +0900
-@@ -70,6 +70,8 @@
-     ghc-prof-options: -prof -auto-all
-     hs-source-dirs:   src
-     extensions:       ForeignFunctionInterface
-+    c-sources:
-+        cbits/stub.c
-     pkgconfig-depends: bibutils
- 
-     if impl(ghc >= 6.10)
diff --git a/hs-bibutils-pkgconfig.patch b/hs-bibutils-pkgconfig.patch
index 2f45414..49c5712 100644
--- a/hs-bibutils-pkgconfig.patch
+++ b/hs-bibutils-pkgconfig.patch
@@ -1,5 +1,5 @@
 --- hs-bibutils-5.5/hs-bibutils.cabal~	2014-12-22 03:05:14.000000000 +0900
-+++ hs-bibutils-5.5/hs-bibutils.cabal	2015-01-19 22:45:45.513195145 +0900
++++ hs-bibutils-5.5/hs-bibutils.cabal	2015-01-28 17:15:55.537956715 +0900
 @@ -29,42 +29,6 @@
  maintainer:         andrea.rossato@unitn.it
  cabal-version:      >= 1.4
@@ -43,14 +43,14 @@
  
  library
      exposed-modules:  Text.Bibutils
-@@ -73,29 +37,7 @@
+@@ -73,29 +37,9 @@
      ghc-prof-options: -prof -auto-all
      hs-source-dirs:   src
      extensions:       ForeignFunctionInterface
 -    include-dirs:     bibutils
 -    includes: bibutils.h
--    c-sources:
--        cbits/stub.c
+     c-sources:
+         cbits/stub.c
 -        bibutils/adsout.c bibutils/adsout_journals.c
 -        bibutils/bibcore.c bibutils/bibl.c bibutils/biblatexin.c
 -        bibutils/bibtexin.c bibutils/bibtexout.c