diff --git a/mkppport.lst b/mkppport.lst
index b13d7088b541..548ae2b53912 100644
--- a/mkppport.lst
+++ b/mkppport.lst
@@ -10,7 +10,6 @@ ext/Cwd
 ext/Data/Dumper
 ext/Digest/SHA
 ext/Sys/Syslog
-ext/threads/shared
 ext/Time/HiRes
 
 win32/ext/Win32API/File