diff --git a/src/cmake/modules/FindIlmBase.cmake b/src/cmake/modules/FindIlmBase.cmake
index 51f6a9c..6312e1c 100644
--- a/src/cmake/modules/FindIlmBase.cmake
+++ b/src/cmake/modules/FindIlmBase.cmake
@@ -123,6 +123,7 @@ set (IlmBase_generic_include_paths
   /opt/local/include)
 set (IlmBase_generic_library_paths
   ${ILMBASE_CUSTOM_LIB_DIR}
+  /usr/lib/${CMAKE_LIBRARY_ARCHITECTURE}
   /usr/lib
   /usr/local/lib
   /sw/lib
