diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9ded7aba95726825ca300fd2ea97d8eca9924c0a..1b5d98ba4ba7bfded47c0c4d0ad2c6cce90673d9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -31,10 +31,10 @@ 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)
 
 set(openssl_DIR "${CMAKE_SOURCE_DIR}/cmake_modules")
-find_package(openssl REQUIRED)
+find_package(openssl)
 
 set(Boost_DIR "${CMAKE_SOURCE_DIR}/cmake_modules")
 if (WIN32)