--- CMakeLists.txt	2019-10-09 12:20:58.359078260 +0200
+++ CMakeLists.txt	2019-10-09 13:30:15.743666144 +0200
@@ -245,14 +245,16 @@
         find_package(GTK3)
         set(CMAKE_MODULE_PATH ${OLD_CMAKE_MODULE_PATH}) # Reset, else the official path isn't used again :/
         if (GTK3_FOUND)
-            include_directories(${GTK3_INCLUDE_DIRS})
+            message("-- GTK3 found")
+            include_directories(${GTK3_INCLUDE_DIRS} /usr/include/harfbuzz/)
         else (GTK3_FOUND)
             message(FATAL_ERROR "Could not locate GTK.")
         endif (GTK3_FOUND)
     else()
         find_package(GTK2)
         if (GTK2_FOUND)
-            include_directories(${GTK2_INCLUDE_DIRS})
+            message("-- GTK2 found")
+            include_directories(${GTK2_INCLUDE_DIRS} /usr/include/harfbuzz/)
         else (GTK2_FOUND)
             message(FATAL_ERROR "Could not locate GTK.")
         endif (GTK2_FOUND)