diff --git a/Source/CTest/Curl/CMakeLists.txt b/Source/CTest/Curl/CMakeLists.txt
index 31fcf93cf5..f4786ebca6 100644
--- a/Source/CTest/Curl/CMakeLists.txt
+++ b/Source/CTest/Curl/CMakeLists.txt
@@ -70,7 +70,6 @@ SET(libCurl_SRCS
   multi.c
   netrc.c
   progress.c
-  security.c
   sendf.c
   share.c
   speedcheck.c