Index: bean/Library_officebean.mk
--- bean/Library_officebean.mk.orig
+++ bean/Library_officebean.mk
@@ -15,6 +15,11 @@ $(eval $(call gb_Library_use_externals,officebean,\
 	jawt \
 ))
 
+$(eval $(call gb_Library_set_include,officebean,\
+    $$(INCLUDE) \
+    -I/usr/X11R6/include \
+))
+
 ifneq ($(OS),WNT)
 $(eval $(call gb_Library_add_cobjects,officebean,\
 	bean/native/unix/com_sun_star_comp_beans_LocalOfficeWindow \