diff --git a/admin/CPP-DEFINES b/admin/CPP-DEFINES
index 6721fdec260..af1d15e5cff 100644
--- a/admin/CPP-DEFINES
+++ b/admin/CPP-DEFINES
@@ -215,8 +215,6 @@ IS_ANY_SEP
 IS_DIRECTORY_SEP
 KERNEL_FILE
 LDAV_SYMBOL
-LIBS_SYSTEM
-LIBXMU
 LINKER
 LINUX_VERSION_CODE
 LISP_FLOAT_TYPE