diff -ur a/build/FindQt5.cmake b/build/FindQt5.cmake
--- a/build/FindQt5.cmake	2019-11-14 08:45:52.000000000 +0100
+++ b/build/FindQt5.cmake	2019-11-15 10:58:45.208000000 +0100
@@ -37,7 +37,7 @@
 
 include_directories(${QT_INCLUDES})
 
-find_program(QT_QMAKE_EXECUTABLE qmake)
+find_program(QT_QMAKE_EXECUTABLE qmake-qt5)
 set(_qmake_vars
     QT_INSTALL_ARCHDATA
     QT_INSTALL_BINS