diff --git a/CMakeLists.txt b/CMakeLists.txt
index a0e9e11d4..93583a5da 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -66,7 +66,7 @@ add_custom_target(uninstall
 if(GTSAM_UNSTABLE_AVAILABLE)
     option(GTSAM_BUILD_UNSTABLE              "Enable/Disable libgtsam_unstable"          ON)
 	option(GTSAM_UNSTABLE_BUILD_PYTHON       "Enable/Disable Python wrapper for libgtsam_unstable" ON)
-	option(GTSAM_UNSTABLE_INSTALL_MATLAB_TOOLBOX "Enable/Disable MATLAB wrapper for libgtsam_unstable" ON)
+	option(GTSAM_UNSTABLE_INSTALL_MATLAB_TOOLBOX "Enable/Disable MATLAB wrapper for libgtsam_unstable" OFF)
 endif()
 option(BUILD_SHARED_LIBS                 "Build shared gtsam library, instead of static" ON)
 option(GTSAM_USE_QUATERNIONS             "Enable/Disable using an internal Quaternion representation for rotations instead of rotation matrices. If enable, Rot3::EXPMAP is enforced by default." OFF)