diff --git a/cmake/GtsamMatlabWrap.cmake b/cmake/GtsamMatlabWrap.cmake
index 3165a307a..a9e04a01a 100644
--- a/cmake/GtsamMatlabWrap.cmake
+++ b/cmake/GtsamMatlabWrap.cmake
@@ -70,8 +70,7 @@ function(wrap_library_internal interfaceHeader linkLibraries extraIncludeDirs ex
 			set(mexModuleExt mexglx)
 		endif()
 	elseif(APPLE)
-	        set(mexModuleExt mexmaci64)
-                set(CMAKE_INSTALL_DIR_NAME ${GTSAM_TOOLBOX_INSTALL_PATH})
+		set(mexModuleExt mexmaci64)
 	elseif(MSVC)
 		if(CMAKE_CL_64)
 			set(mexModuleExt mexw64)
diff --git a/gtsam/CMakeLists.txt b/gtsam/CMakeLists.txt
index 63528d3b4..8c1d8bb43 100644
--- a/gtsam/CMakeLists.txt
+++ b/gtsam/CMakeLists.txt
@@ -113,10 +113,6 @@ 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)