diff --git a/simspark-0.2.3-boostfix.patch b/simspark-0.2.3-boostfix.patch
deleted file mode 100644
index 12845d6..0000000
--- a/simspark-0.2.3-boostfix.patch
+++ /dev/null
@@ -1,12 +0,0 @@
-diff -up simspark-0.2.3/CMakeLists.txt.boostfix simspark-0.2.3/CMakeLists.txt
---- simspark-0.2.3/CMakeLists.txt.boostfix	2012-08-21 22:40:05.295485251 +0430
-+++ simspark-0.2.3/CMakeLists.txt	2012-08-21 22:40:18.546319591 +0430
-@@ -53,7 +53,7 @@ include(AdditionalSearchPaths)
- find_package(Ruby REQUIRED)
- find_package(Freetype REQUIRED)
- find_package(DevIL REQUIRED)
--find_package(Boost REQUIRED thread COMPONENTS regex date_time)
-+find_package(Boost REQUIRED thread system COMPONENTS regex date_time)
- find_package(wxWidgets COMPONENTS gl base core)
- find_package(ODE REQUIRED)
- find_package(OpenGL REQUIRED)
diff --git a/simspark.spec b/simspark.spec
index 8dd1cc3..f7d9f9a 100644
--- a/simspark.spec
+++ b/simspark.spec
@@ -76,7 +76,6 @@ rm -rf %{buildroot}/%{_datadir}/doc
 %changelog
 * Wed Aug 15 2012 Hedayat Vatankhah <hedayat.fwd+rpmchlog@gmail.com> - 0.2.3-3
 - Rebuild for Boost 1.50
-- Link to boost system library
 
 * Sat Jul 21 2012 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.2.3-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_18_Mass_Rebuild