diff --git a/ruby/CMakeLists.txt b/ruby/CMakeLists.txt
index 227112b..d899058 100644
--- a/ruby/CMakeLists.txt
+++ b/ruby/CMakeLists.txt
@@ -1,28 +1,28 @@
-find_package(Ruby 1.9 QUIET)
-
-if(RUBY_FOUND)
-    message(STATUS "Found Ruby: ${RUBY_EXECUTABLE} (found version \"${RUBY_VERSION}\")")
-endif()
+unset(RUBY_VERSION_MAJOR CACHE)
+unset(RUBY_INCLUDE_DIR CACHE)
+unset(RUBY_CONFIG_INCLUDE_DIR CACHE)
+unset(RUBY_LIBRARY CACHE)
+find_package(Ruby 1.9)
 
 set(krossruby_PART_SRCS
     rubyvariant.cpp
     rubyinterpreter.cpp
     rubyextension.cpp
     rubyscript.cpp
     rubymodule.cpp
     rubycallcache.cpp
     rubyobject.cpp
 )
 
 if(RUBY_FOUND)
     include_directories(${RUBY_INCLUDE_DIRS})
     add_library(krossruby MODULE ${krossruby_PART_SRCS})
     target_link_libraries(krossruby
         KF5::KrossCore
         Qt5::Gui
         Qt5::Widgets
         ${RUBY_LIBRARY}
     )
 
     install(TARGETS krossruby DESTINATION ${KDE_INSTALL_PLUGINDIR})
 endif()