diff --git a/CMakeLists.txt b/CMakeLists.txt
index c22afab6e5690a099822d56effe7ec1fe8b11bbf..0fdebb2352f9502164144e50ee62bfe7cde39364 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -18,6 +18,8 @@ message(STATUS "|- log4cxx : -DLOG4CXX_INCLUDE_DIR,  -DLOG4CXX_LIBRARY")
 message(STATUS "|- purple  : -DPURPLE_INCLUDE_DIR,   -DPURPLE_LIBRARY")
 message(STATUS "           : -DPURPLE_NOT_RUNTIME - enables compilation with libpurple.lib")
 
+option(ENABLE_QT4 "Build with Qt4 instead of Qt5" ON)
+
 option(ENABLE_SQLITE3 "Build with SQLite3 support" ON)
 option(ENABLE_MYSQL "Build with MySQL support" ON)
 option(ENABLE_PQXX "Build with Postgres supoort" ON)
@@ -182,8 +184,13 @@ endif()
 if(ENABLE_IRC)
 	find_package(Communi)
 
-	INCLUDE(FindQt4)
-	FIND_PACKAGE(Qt4 COMPONENTS QtCore QtNetwork)
+	if(ENABLE_QT4)
+		INCLUDE(FindQt4)
+		FIND_PACKAGE(Qt4 COMPONENTS QtCore QtNetwork)
+	else()
+		FIND_PACKAGE(Qt5 COMPONENTS Core Network)
+	endif()
+
 	# ADD_DEFINITIONS(${SWIFTEN_CFLAGS})
 	ADD_DEFINITIONS(-DSUPPORT_LEGACY_CAPS)
 	# ADD_DEFINITIONS(-DBOOST_FILESYSTEM_VERSION=2)
@@ -321,7 +328,10 @@ if (PROTOBUF_FOUND)
 		message("IRC plugin        : yes")
 		include_directories(${QT_QTNETWORK_INCLUDE_DIR})
 		include_directories(${IRC_INCLUDE_DIR})
-		include(${QT_USE_FILE})
+	
+		if (ENABLE_QT4)
+			include(${QT_USE_FILE})
+		endif()
 	else()
 		if(ENABLE_IRC)
 			message("IRC plugin        : no (install libCommuni and libprotobuf-dev)")
diff --git a/backends/libcommuni/CMakeLists.txt b/backends/libcommuni/CMakeLists.txt
index 679981ed9e006004593c7b28e5474e7e5131b301..4a71b379ad1e54afb7af0059083eb5252045b28a 100644
--- a/backends/libcommuni/CMakeLists.txt
+++ b/backends/libcommuni/CMakeLists.txt
@@ -1,14 +1,29 @@
 cmake_minimum_required(VERSION 2.6)
 FILE(GLOB SRC *.cpp)
 FILE(GLOB HEADERS *.h)
-QT4_WRAP_CPP(SRC ${HEADERS} OPTIONS -DBOOST_TT_HAS_OPERATOR_HPP_INCLUDED)
+
+if (ENABLE_QT4)
+	QT4_WRAP_CPP(SRC ${HEADERS} OPTIONS -DBOOST_TT_HAS_OPERATOR_HPP_INCLUDED)
+else()
+	QT5_WRAP_CPP(SRC ${HEADERS} OPTIONS -DBOOST_TT_HAS_OPERATOR_HPP_INCLUDED)
+	include_directories(${Qt5Core_INCLUDE_DIRS} ${Qt5Network_INCLUDE_DIRS})
+endif()
+
 add_definitions(-DQT_NO_KEYWORDS)
 ADD_EXECUTABLE(spectrum2_libcommuni_backend ${SRC})
 
 if (NOT WIN32)
-	target_link_libraries(spectrum2_libcommuni_backend ${IRC_LIBRARY} Qt4::QtNetwork Qt4::QtCore transport pthread)
+	if (ENABLE_QT4)
+		target_link_libraries(spectrum2_libcommuni_backend ${IRC_LIBRARY} Qt4::QtNetwork Qt4::QtCore transport pthread)
+	else()
+		target_link_libraries(spectrum2_libcommuni_backend ${IRC_LIBRARY} Qt5::Network Qt5::Core transport pthread)
+	endif()
 else ()
-	target_link_libraries(spectrum2_libcommuni_backend ${IRC_LIBRARY} Qt4::QtNetwork Qt4::QtCore transport)
+	if (ENABLE_QT4)
+		target_link_libraries(spectrum2_libcommuni_backend ${IRC_LIBRARY} Qt4::QtNetwork Qt4::QtCore transport)
+	else()
+		target_link_libraries(spectrum2_libcommuni_backend ${IRC_LIBRARY} Qt5::Network Qt5::Core transport)
+	endif()
 endif()
 INSTALL(TARGETS spectrum2_libcommuni_backend RUNTIME DESTINATION bin)
 
diff --git a/cmake_modules/FindCommuni.cmake b/cmake_modules/FindCommuni.cmake
index 49d732cc87c6f04e86aebc4d02001d478f0f4eb3..c650897523aa225e86361d9fcd6f7c1c46a1e561 100644
--- a/cmake_modules/FindCommuni.cmake
+++ b/cmake_modules/FindCommuni.cmake
@@ -1,8 +1,16 @@
-find_package(Qt4)
-include( ${QT_USE_FILE} )
+if( ENABLE_QT4 )
+	find_package(Qt4)
+	include( ${QT_USE_FILE} )
+else()
+	find_package(Qt5Network)
+endif()
 
 FIND_LIBRARY(IRC_LIBRARY NAMES IrcCore PATHS ${QT_LIBRARY_DIR})
-FIND_PATH(IRC_INCLUDE_DIR NAMES "IrcCore/ircglobal.h" PATHS ${QT_INCLUDE_DIR} PATH_SUFFIXES Communi)
+if( ENABLE_QT4 )
+	FIND_PATH(IRC_INCLUDE_DIR NAMES "IrcCore/ircglobal.h" PATHS ${QT_INCLUDE_DIR} PATH_SUFFIXES Communi)
+else()
+	FIND_PATH(IRC_INCLUDE_DIR NAMES "IrcCore/ircglobal.h" PATHS ${Qt5Core_INCLUDE_DIRS} ${Qt5Core_INCLUDE_DIRS}"/.." PATH_SUFFIXES Communi)
+endif()
 
 # message( STATUS ${IRC_LIBRARY})
 if( IRC_LIBRARY AND IRC_INCLUDE_DIR )