diff --git a/package/fltk/Config.in b/package/fltk/Config.in
index eff72b5..2085192 100644
--- a/package/fltk/Config.in
+++ b/package/fltk/Config.in
@@ -3,6 +3,8 @@ config BR2_PACKAGE_FLTK
 	depends on BR2_INSTALL_LIBSTDCPP
 	depends on BR2_PACKAGE_XORG7
 	select BR2_PACKAGE_XLIB_LIBXT
+	select BR2_PACKAGE_XLIB_LIBX11
+	select BR2_PACKAGE_XLIB_LIBXEXT
 	help
 	  A cross-platform C++ GUI toolkit for UNIX/Linux (X11),
 	  Microsoft Windows, and MacOS X.
diff --git a/package/fltk/fltk.mk b/package/fltk/fltk.mk
index a5dac37..3f192cd 100644
--- a/package/fltk/fltk.mk
+++ b/package/fltk/fltk.mk
@@ -11,6 +11,6 @@ FLTK_INSTALL_STAGING = YES
 FLTK_INSTALL_STAGING_OPT = DESTDIR=$(STAGING_DIR) STRIP=$(TARGET_STRIP) install
 FLTK_INSTALL_TARGET_OPT = DESTDIR=$(TARGET_DIR) STRIP=$(TARGET_STRIP) install
 FLTK_CONF_OPT = --enable-threads --with-x
-FLTK_DEPENDENCIES = xserver_xorg-server xlib_libXt
+FLTK_DEPENDENCIES = xlib_libX11 xlib_libXext xlib_libXt
 
 $(eval $(autotools-package))