diff -aur a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt    2019-08-04 12:39:49.674360014 +0100
+++ b/CMakeLists.txt    2019-08-04 12:40:02.904652576 +0100
@@ -75,6 +75,7 @@
   ${GTK_INCLUDE_DIRS}
   ${M_INCLUDE_DIR}
   ${NOTIFY_INCLUDE_DIRS}
+  /usr/include/harfbuzz
 )

 ADD_SUBDIRECTORY(configuration)