diff --git a/gtsam/CMakeLists.txt b/gtsam/CMakeLists.txt
index 384c55a77..d7a6ba86e 100644
--- a/gtsam/CMakeLists.txt
+++ b/gtsam/CMakeLists.txt
@@ -6,7 +6,7 @@ set (gtsam_subdirs
     geometry 
     inference 
 	symbolic 
-    discrete 
+    #discrete 
     linear 
     nonlinear 
     slam
@@ -79,7 +79,7 @@ set(gtsam_srcs
     ${geometry_srcs}
     ${inference_srcs}
 	${symbolic_srcs}
-    ${discrete_srcs}
+    #${discrete_srcs}
     ${linear_srcs}
     ${nonlinear_srcs}
     ${slam_srcs}
diff --git a/gtsam_unstable/CMakeLists.txt b/gtsam_unstable/CMakeLists.txt
index f59208ef6..07a913355 100644
--- a/gtsam_unstable/CMakeLists.txt
+++ b/gtsam_unstable/CMakeLists.txt
@@ -3,7 +3,7 @@
 set (gtsam_unstable_subdirs
     base 
     geometry
-    discrete
+    #discrete
     linear 
     dynamics
     nonlinear
@@ -48,7 +48,7 @@ endforeach(subdir)
 set(gtsam_unstable_srcs
     ${base_srcs} 
     ${geometry_srcs}
-    ${discrete_srcs}
+    #${discrete_srcs}
     ${dynamics_srcs}
     ${linear_srcs}    
     ${nonlinear_srcs}