--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -204,4 +204,4 @@ cmd_bzip2 = (bzip2 -9 < $< && $(size_app
 # ---------------------------------------------------------------------------
 
 quiet_cmd_lzma = LZMA    $@
-cmd_lzma = (lzma -9 -c $< && $(size_append) $<) >$@ || (rm -f $@ ; false)
+cmd_lzma = lzma e $< $@ -lc1 -lp2 -pb2