diff --git a/code/CMakeLists.txt b/code/CMakeLists.txt
index ddf5e3551..2d39a00c2 100644
--- a/code/CMakeLists.txt
+++ b/code/CMakeLists.txt
@@ -809,7 +809,7 @@ SET_TARGET_PROPERTIES( assimp PROPERTIES
 )
 
 if (APPLE)
-  SET_TARGET_PROPERTIES( assimp PROPERTIES INSTALL_NAME_DIR "${CMAKE_INSTALL_PREFIX}/${LIB_INSTALL_DIR}")
+  SET_TARGET_PROPERTIES( assimp PROPERTIES INSTALL_NAME_DIR "${CMAKE_INSTALL_PREFIX}/${ASSIMP_LIB_INSTALL_DIR}")
 endif()
 
 # Build against external unzip, or add ../contrib/unzip so