diff --git a/CMakeLists.txt b/CMakeLists.txt
index 11d7ee164d87c6b4331ca6f89231b3d59cc25f2f..b7b76671e6bdd5e3fc994c319dde2a2986b8024c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -43,12 +43,11 @@ set(event_DIR "${CMAKE_SOURCE_DIR}/cmake_modules")
 find_package(event)
 
 set(Swiften_DIR "${CMAKE_SOURCE_DIR}/cmake_modules")
-find_package(Swiften REQUIRED)
+find_package(Swiften)
 
 if (CMAKE_COMPILER_IS_GNUCXX)
 set(openssl_DIR "${CMAKE_SOURCE_DIR}/cmake_modules")
-find_package(openssl REQUIRED)
-endif()
+find_package(openssl)
 
 set(Boost_DIR "${CMAKE_SOURCE_DIR}/cmake_modules")
 if (WIN32)