diff --git a/doc/CMakeLists.txt b/doc/CMakeLists.txt
index 4cb6d4a40..634d3cf71 100644
--- a/doc/CMakeLists.txt
+++ b/doc/CMakeLists.txt
@@ -28,6 +28,7 @@ if (GTSAM_BUILD_DOCS)
         gtsam/discrete 
         gtsam/linear 
         gtsam/nonlinear 
+        gtsam/sam 
         gtsam/slam 
         gtsam
     )