diff --git a/CMakeLists.txt b/CMakeLists.txt
index d757b68..3dfc9ad 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,58 +1,58 @@
 project(klettres)
 
 #minimum requirements
 cmake_minimum_required(VERSION 2.8.12 FATAL_ERROR)
 set(QT_MIN_VERSION "5.2.0")
 
 # we need some parts of the ECM CMake helpers
 find_package (ECM 1.7.0 REQUIRED NO_MODULE)
 set (CMAKE_MODULE_PATH ${ECM_MODULE_PATH})
 include(ECMOptionalAddSubdirectory)
 include(CMakePackageConfigHelpers)
 include(ECMInstallIcons)
 
 include(KDEInstallDirs)
 include(KDECompilerSettings NO_POLICY_SCOPE)
 include(KDECMakeSettings)
 include(ECMAddTests)
 include(ECMAddAppIcon)
 
 # Load the frameworks we need
 
 find_package(Qt5 ${QT_MIN_VERSION} CONFIG REQUIRED
   Core
   Svg
   Network
   Test
   Widgets
 )
-find_package(Phonon4Qt5)
+find_package(Phonon4Qt5 REQUIRED)
 
 find_package(KF5 REQUIRED COMPONENTS
   Completion
   Crash
   DocTools
   I18n
   NewStuff
   WidgetsAddons
   ConfigWidgets
   CoreAddons
 )
 
 include_directories (${CMAKE_SOURCE_DIR} ${CMAKE_BINARY_DIR} ${PHONON_INCLUDE_DIR})
 add_definitions(-DQT_USE_FAST_CONCATENATION -DQT_USE_FAST_OPERATOR_PLUS)
 
 ecm_optional_add_subdirectory( doc )
 ecm_optional_add_subdirectory( src )
 ecm_optional_add_subdirectory( pics )
 ecm_optional_add_subdirectory( data )
 ecm_optional_add_subdirectory( sounds )
 ecm_optional_add_subdirectory( icons )
 ecm_optional_add_subdirectory( themes )
 ecm_optional_add_subdirectory( tests )
 
 install(FILES org.kde.klettres.appdata.xml DESTINATION ${KDE_INSTALL_METAINFODIR})
 
 feature_summary(WHAT ALL INCLUDE_QUIET_PACKAGES FATAL_ON_MISSING_REQUIRED_PACKAGES)