diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9a698266b..0659a6e88 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -26,7 +26,8 @@ include(FeatureSummary)
 
 set(YCM_USE_CMAKE_PROPOSED TRUE CACHE BOOL "Use files including unmerged cmake patches")
 
-# Compilation options
+# YCM options 
+option(YCM_DISABLE_SYSTEM_PACKAGES "Disable use of all the system installed packages" ON)
 
 # Dependencies options 
 ## Matlab related options