diff --git a/OpenEXR_Viewers/CMakeLists.txt b/OpenEXR_Viewers/CMakeLists.txt
index 50927ebfcc..5a21f540e7 100644
--- a/OpenEXR_Viewers/CMakeLists.txt
+++ b/OpenEXR_Viewers/CMakeLists.txt
@@ -31,10 +31,10 @@ SET (BUILD_WITH_INSTALL_RPATH 1)
 ADD_DEFINITIONS ( -DHAVE_CONFIG_H )
 
 SET (FLTK_SKIP_FLUID 1)
-FIND_PACKAGE (OPENGL REQUIRED)
+FIND_PACKAGE (OpenGL REQUIRED)
 FIND_PACKAGE (FLTK)
 FIND_PACKAGE (GLUT)
-FIND_PACKAGE (CG)
+FIND_PACKAGE (Cg)
 
 IF (NOT WIN32)
   SET ( PTHREAD_LIB pthread )