diff --git a/Modules/CTest.cmake b/Modules/CTest.cmake
index 40ae7fd5b..44e8c6759 100644
--- a/Modules/CTest.cmake
+++ b/Modules/CTest.cmake
@@ -122,15 +122,16 @@ IF(BUILD_TESTING)
     ENDIF(NOT __CTEST_UPDATE_TYPE_COMPLAINED)
   ENDIF(NOT UPDATE_TYPE)
 
-  IF(UPDATE_TYPE MATCHES "[Cc][Vv][Ss]")
+  STRING(TOLOWER "${UPDATE_TYPE}" _update_type)
+  IF("${_update_type}" STREQUAL "cvs")
     SET(UPDATE_COMMAND "${CVSCOMMAND}")
     SET(UPDATE_OPTIONS "${CVS_UPDATE_OPTIONS}")
-  ELSE(UPDATE_TYPE MATCHES "[Cc][Vv][Ss]")
-    IF(UPDATE_TYPE MATCHES "[Ss][Vv][Nn]")
+  ELSE("${_update_type}" STREQUAL "cvs")
+    IF("${_update_type}" STREQUAL "svn")
       SET(UPDATE_COMMAND "${SVNCOMMAND}")
       SET(UPDATE_OPTIONS "${SVN_UPDATE_OPTIONS}")
-    ENDIF(UPDATE_TYPE MATCHES "[Ss][Vv][Nn]")
-  ENDIF(UPDATE_TYPE MATCHES "[Cc][Vv][Ss]")
+    ENDIF("${_update_type}" STREQUAL "svn")
+  ENDIF("${_update_type}" STREQUAL "cvs")
 
   SET(DART_TESTING_TIMEOUT 1500 CACHE STRING 
     "Maximum time allowed before CTest will kill the test.")