diff --git a/indra/media_plugins/CMakeLists.txt b/indra/media_plugins/CMakeLists.txt
index 399cde46b..9858d093e 100755
--- a/indra/media_plugins/CMakeLists.txt
+++ b/indra/media_plugins/CMakeLists.txt
@@ -8,7 +8,7 @@ if (LINUX)
     add_subdirectory(gstreamer010)
 endif (LINUX)
 
-if (DARWIN or WINDOWS)
+if (DARWIN OR WINDOWS)
     add_subdirectory(quicktime)
 endif (DARWIN OR WINDOWS)