diff --git a/tools/font_tool/CMakeLists.txt b/tools/font_tool/CMakeLists.txt
index e67e6fbce..fce46bf16 100644
--- a/tools/font_tool/CMakeLists.txt
+++ b/tools/font_tool/CMakeLists.txt
@@ -11,6 +11,7 @@ if(FONT_TOOL)
         if(UNIX AND NOT APPLE)
             find_package(Xrandr REQUIRED)
             find_package(X11 REQUIRED)
+            include_directories(${X11_INCLUDE_DIR})
             if(NOT XRANDR_FOUND)
                 message(STATUS "XRANDR not found.")
             endif()
@@ -27,6 +28,7 @@ if(FONT_TOOL)
             if(UNIX AND NOT APPLE)
                 target_link_libraries(font_tool ${XRANDR_LIBRARIES})
                 target_link_libraries(font_tool ${X11_Xft_LIB} Xxf86vm)
+                target_link_libraries(font_tool ${X11_LIBRARIES})
             endif()
         else()
             message(STATUS "Freetype was not found, the font tool won't be built (only useful for developers)")