diff --git a/ObsoleteFiles.inc b/ObsoleteFiles.inc
index a4301ebdab41..02477bbebd0b 100644
--- a/ObsoleteFiles.inc
+++ b/ObsoleteFiles.inc
@@ -52,7 +52,7 @@
 # done
 
 # 20240422: remove improperly installed libcxxrt.so.1
-OLD_LIBS+=usr/lib/libcxxrt.so.1
+MOVED_LIBS+=usr/lib/libcxxrt.so.1
 
 # 20240414: unix_socketpair_test renamed
 OLD_FILES+=usr/tests/sys/kern/unix_socketpair_test