diff --git a/CMakeLists.txt b/CMakeLists.txt
index 089731f62..6e9aa0009 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -192,10 +192,10 @@ endif()
 
 ###############################################################################
 # Option for using system Eigen or GTSAM-bundled Eigen
-### Disabled until our patches are included in Eigen ###
+### These patches only affect usage of MKL. If you want to enable MKL, you *must*
+### use our patched version of Eigen
 ### See:  http://eigen.tuxfamily.org/bz/show_bug.cgi?id=704 (Householder QR MKL selection)
 ###       http://eigen.tuxfamily.org/bz/show_bug.cgi?id=705 (Fix MKL LLT return code)
-###       http://eigen.tuxfamily.org/bz/show_bug.cgi?id=716 (Improved comma initialization)
 option(GTSAM_USE_SYSTEM_EIGEN "Find and use system-installed Eigen. If 'off', use the one bundled with GTSAM" OFF)
 
 # Switch for using system Eigen or GTSAM-bundled Eigen