diff --git a/CMakeLists.txt b/CMakeLists.txt
index 60ee08a..41f7c61 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -103,8 +103,8 @@ IF(FLTK_FOUND)
     SET( FLTK_ADD_LIBS "fltk_jpeg" )
   ENDIF( NOT JPEG_FOUND )
 ENDIF(FLTK_FOUND)
-INCLUDE_DIRECTORIES( ${FLTK_INCLUDE_DIRS} )
-LINK_DIRECTORIES( ${FLTK_LIBRARY_DIRS} )
+INCLUDE_DIRECTORIES( ${FLTK_INCLUDE_DIR} )
+LINK_DIRECTORIES( ${FLTK_LIBRARIES} )
 
 FIND_PACKAGE( OpenGL )
 IF(OPENGL_FOUND)