diff --git a/plugins/CMakeLists.txt b/plugins/CMakeLists.txt
index 07e14fa11..77ab97f89 100644
--- a/plugins/CMakeLists.txt
+++ b/plugins/CMakeLists.txt
@@ -191,9 +191,10 @@ if(BUILD_SUPPORTED)
     dfhack_plugin(workNow workNow.cpp)
     dfhack_plugin(xlsxreader xlsxreader.cpp LINK_LIBRARIES lua xlsxio_read zip expat ${LIB_Z_LIB})
     dfhack_plugin(zone zone.cpp LINK_LIBRARIES lua)
+
+    target_include_directories(xlsxreader PRIVATE ${XLSXIO_INSTALL_DIR}/include)
+    add_dependencies(xlsxreader xlsxio_project)
 endif()
-target_include_directories(xlsxreader PRIVATE ${XLSXIO_INSTALL_DIR}/include)
-add_dependencies(xlsxreader xlsxio_project)
 
 # this is the skeleton plugin. If you want to make your own, make a copy and then change it
 option(BUILD_SKELETON "Build the skeleton plugin." OFF)