diff --git a/src/cmp/cmpmain.lsp b/src/cmp/cmpmain.lsp
index 72aae6c15..ce5019803 100755
--- a/src/cmp/cmpmain.lsp
+++ b/src/cmp/cmpmain.lsp
@@ -13,6 +13,8 @@
 
 ;;;; CMPMAIN  Compiler main program.
 
+(ext:package-lock "CL" nil)
+
 (in-package "COMPILER")
 
 #-threads
@@ -931,4 +933,6 @@ from the C language code.  NIL means \"do not create the file\"."
 
 (ext:package-lock "CL" t)
 
+(setf *features* (delete :ecl-bytecmp *features*))
+
 (provide 'cmp)