diff --git a/CTestConfig.cmake b/CTestConfig.cmake
index 1339ffc2ddc03af269ea0ba373fcf4e532dec254..99d197ebcf270bc8d23ae1c79fcb3482d97b9f97 100644
--- a/CTestConfig.cmake
+++ b/CTestConfig.cmake
@@ -3,7 +3,9 @@
 
 set(CTEST_PROJECT_NAME "KWSys")
 set(CTEST_NIGHTLY_START_TIME "21:00:00 EDT")
-set(CTEST_DROP_METHOD "http")
+if (NOT CTEST_DROP_METHOD STREQUAL "https")
+  set(CTEST_DROP_METHOD "http")
+endif ()
 set(CTEST_DROP_SITE "open.cdash.org")
 set(CTEST_DROP_LOCATION "/submit.php?project=KWSys")
 set(CTEST_DROP_SITE_CDASH TRUE)