diff --git a/cmake/XlntConfig.cmake.in b/cmake/XlntConfig.cmake.in
index 01fe4981..9cefa6e0 100644
--- a/cmake/XlntConfig.cmake.in
+++ b/cmake/XlntConfig.cmake.in
@@ -7,7 +7,6 @@
 get_filename_component(XLNT_CMAKE_DIR "${CMAKE_CURRENT_LIST_FILE}" PATH)
 
-set_and_check(XLNT_INCLUDE_DIR "@XLNT_INCLUDE_INSTALL_DIR@")
 
 check_required_components(xlnt)
 
 if(NOT TARGET xlnt::xlnt)