diff -ruN kadu-4.3/kadu-core/CMakeLists.txt my/kadu-core/CMakeLists.txt
--- kadu-4.3/kadu-core/CMakeLists.txt	2017-01-24 22:36:21.000000000 +0100
+++ my/kadu-core/CMakeLists.txt	2019-11-22 02:05:51.381540018 +0100
@@ -111,7 +111,7 @@
 list (APPEND ADDITIONAL_LIBKADU_LIBRARIES ${LibArchive_LIBRARIES})
 
 if (UNIX AND NOT APPLE)
-	find_package (X11 REQUIRED COMPONENTS X11 Xutil Xfixes)
+	find_package (X11 REQUIRED COMPONENTS Xutil Xfixes)
 	if (X11_FOUND AND X11_Xutil_FOUND AND X11_Xfixes_FOUND)
 		message (STATUS "Found required X11 libraries: ${X11_X11_LIB};${X11_Xfixes_LIB}")
 	else ()
diff -ruN kadu-4.3/plugins/idle/CMakeLists.txt my/plugins/idle/CMakeLists.txt
--- kadu-4.3/plugins/idle/CMakeLists.txt	2017-01-24 22:36:22.000000000 +0100
+++ my/plugins/idle/CMakeLists.txt	2019-11-22 02:06:57.503381610 +0100
@@ -15,7 +15,7 @@
 )
 
 if (UNIX AND NOT APPLE)
-	find_package (X11 REQUIRED COMPONENTS X11 Xutil Xscreensaver)
+	find_package (X11 REQUIRED COMPONENTS Xutil Xscreensaver)
 	if (X11_Xscreensaver_FOUND)
 		message (STATUS "Found required X11 libraries: ${X11_X11_LIB};${X11_Xscreensaver_LIB}")
 	else ()
diff -ruN kadu-4.3/plugins/pcspeaker/CMakeLists.txt my/plugins/pcspeaker/CMakeLists.txt
--- kadu-4.3/plugins/pcspeaker/CMakeLists.txt	2017-01-24 22:36:22.000000000 +0100
+++ my/plugins/pcspeaker/CMakeLists.txt	2019-11-22 02:07:45.315719788 +0100
@@ -15,7 +15,7 @@
 set (LIBRARIES "")
 
 if (UNIX AND NOT APPLE)
-	find_package (X11 REQUIRED COMPONENTS X11)
+	find_package (X11 REQUIRED)
 	if (NOT X11_FOUND)
 		message (SEND_ERROR "Could NOT find X11")
 	endif ()
diff -ruN kadu-4.3/plugins/screenshot/CMakeLists.txt my/plugins/screenshot/CMakeLists.txt
--- kadu-4.3/plugins/screenshot/CMakeLists.txt	2017-01-24 22:36:22.000000000 +0100
+++ my/plugins/screenshot/CMakeLists.txt	2019-11-22 02:07:54.323972436 +0100
@@ -30,7 +30,7 @@
 
 if (UNIX AND NOT APPLE)
 	set (PLUGIN_ADDITIONAL_QT_MODULES X11Extras)
-	find_package (X11 REQUIRED COMPONENTS X11 Xext Xshape)
+	find_package (X11 REQUIRED COMPONENTS Xext Xshape)
 	if (X11_Xshape_FOUND)
 		message (STATUS "Found required X11 libraries: ${X11_X11_LIB};${X11_Xext_LIB}")
 	else ()