diff --git a/cmake-findruby.patch b/cmake-findruby.patch
index b5d4fae..50e6a6e 100644
--- a/cmake-findruby.patch
+++ b/cmake-findruby.patch
@@ -1,21 +1,22 @@
-Index: cmake-3.17.0-rc1/Modules/FindRuby.cmake
+Index: cmake-3.18.0-rc1/Modules/FindRuby.cmake
 ===================================================================
---- cmake-3.17.0-rc1.orig/Modules/FindRuby.cmake
-+++ cmake-3.17.0-rc1/Modules/FindRuby.cmake
-@@ -110,14 +110,8 @@ if(RUBY_EXECUTABLE  AND NOT  RUBY_VERSIO
-   _RUBY_CONFIG_VAR("sitearchdir" RUBY_SITEARCH_DIR)
-   _RUBY_CONFIG_VAR("sitelibdir" RUBY_SITELIB_DIR)
+--- cmake-3.18.0-rc1.orig/Modules/FindRuby.cmake
++++ cmake-3.18.0-rc1/Modules/FindRuby.cmake
+@@ -289,14 +289,9 @@ if(Ruby_EXECUTABLE AND NOT Ruby_VERSION_
+   _RUBY_CONFIG_VAR("sitearchdir" Ruby_SITEARCH_DIR)
+   _RUBY_CONFIG_VAR("sitelibdir" Ruby_SITELIB_DIR)
  
 -  # vendor_ruby available ?
--  execute_process(COMMAND ${RUBY_EXECUTABLE} -r vendor-specific -e "print 'true'"
--    OUTPUT_VARIABLE RUBY_HAS_VENDOR_RUBY  ERROR_QUIET)
+-  execute_process(COMMAND ${Ruby_EXECUTABLE} -r vendor-specific -e "print 'true'"
+-    OUTPUT_VARIABLE Ruby_HAS_VENDOR_RUBY  ERROR_QUIET)
 -
--  if(RUBY_HAS_VENDOR_RUBY)
--    _RUBY_CONFIG_VAR("vendorlibdir" RUBY_VENDORLIB_DIR)
--    _RUBY_CONFIG_VAR("vendorarchdir" RUBY_VENDORARCH_DIR)
+-  if(Ruby_HAS_VENDOR_RUBY)
+-    _RUBY_CONFIG_VAR("vendorlibdir" Ruby_VENDORLIB_DIR)
+-    _RUBY_CONFIG_VAR("vendorarchdir" Ruby_VENDORARCH_DIR)
 -  endif()
-+  _RUBY_CONFIG_VAR("vendorlibdir" RUBY_VENDORLIB_DIR)
-+  _RUBY_CONFIG_VAR("vendorarchdir" RUBY_VENDORARCH_DIR)
++  # vendor_ruby
++  _RUBY_CONFIG_VAR("vendorlibdir" Ruby_VENDORLIB_DIR)
++  _RUBY_CONFIG_VAR("vendorarchdir" Ruby_VENDORARCH_DIR)
  
    # save the results in the cache so we don't have to run ruby the next time again
-   set(RUBY_VERSION_MAJOR    ${RUBY_VERSION_MAJOR}    CACHE PATH "The Ruby major version" FORCE)
+   set(Ruby_VERSION_MAJOR    ${Ruby_VERSION_MAJOR}    CACHE PATH "The Ruby major version" FORCE)