diff --git a/Modules/SelectLibraryConfigurations.cmake b/Modules/SelectLibraryConfigurations.cmake
index dbff4876b..da927c9ce 100644
--- a/Modules/SelectLibraryConfigurations.cmake
+++ b/Modules/SelectLibraryConfigurations.cmake
@@ -54,10 +54,10 @@ macro( select_library_configurations basename )
         # is set, then set optimized and debug options.
         if( CMAKE_CONFIGURATION_TYPES OR CMAKE_BUILD_TYPE )
             set( ${basename}_LIBRARY )
-            foreach( _libname LISTS ${basename}_LIBRARY_RELEASE )
+            foreach( _libname IN LISTS ${basename}_LIBRARY_RELEASE )
                 list( APPEND ${basename}_LIBRARY optimized "${_libname}" )
             endforeach()
-            foreach( _libname LISTS ${basename}_LIBRARY_DEBUG )
+            foreach( _libname IN LISTS ${basename}_LIBRARY_DEBUG )
                 list( APPEND ${basename}_LIBRARY debug "${_libname}" )
             endforeach()
             set( ${basename}_LIBRARIES "${${basename}_LIBRARY}" )