diff --git a/cmake/GtsamMatlabWrap.cmake b/cmake/GtsamMatlabWrap.cmake
index a9e04a01a..3165a307a 100644
--- a/cmake/GtsamMatlabWrap.cmake
+++ b/cmake/GtsamMatlabWrap.cmake
@@ -70,7 +70,8 @@ function(wrap_library_internal interfaceHeader linkLibraries extraIncludeDirs ex
 			set(mexModuleExt mexglx)
 		endif()
 	elseif(APPLE)
-		set(mexModuleExt mexmaci64)
+	        set(mexModuleExt mexmaci64)
+                set(CMAKE_INSTALL_DIR_NAME ${GTSAM_TOOLBOX_INSTALL_PATH})
 	elseif(MSVC)
 		if(CMAKE_CL_64)
 			set(mexModuleExt mexw64)
diff --git a/gtsam/CMakeLists.txt b/gtsam/CMakeLists.txt
index 8c1d8bb43..63528d3b4 100644
--- a/gtsam/CMakeLists.txt
+++ b/gtsam/CMakeLists.txt
@@ -113,6 +113,10 @@ if (GTSAM_BUILD_STATIC_LIBRARY)
 			PREFIX "lib"
 			COMPILE_DEFINITIONS GTSAM_IMPORT_STATIC)
 	endif()
+	if(APPLE) # Set the 
+		set_target_properties(gtsam PROPERTIES
+                        INSTALL_DIR_NAME ${CMAKE_INSTALL_PREFIX}/lib)
+	endif()
     install(TARGETS gtsam EXPORT GTSAM-exports ARCHIVE DESTINATION lib)
     list(APPEND GTSAM_EXPORTED_TARGETS gtsam)
     set(GTSAM_EXPORTED_TARGETS "${GTSAM_EXPORTED_TARGETS}" PARENT_SCOPE)