diff --git a/python.sty b/python.sty
index 346c89b..2cd1a0c 100644
--- a/python.sty
+++ b/python.sty
@@ -71,7 +71,7 @@
 \ifwindows
 \immediate\write18{type \@pythoninclude\space\@outname.py 2> nul: | python > \@outname.py.out 2> \@outname.py.err & call echo ^\@percentchar ERRORLEVEL^\@percentchar > \@outname.rc}
 \else
-\immediate\write18{cat \@pythoninclude\space\@outname.py | /usr/bin/env python > \@outname.py.out 2> \@outname.py.err; echo -n $? > \@outname.rc}
+\immediate\write18{cat \@pythoninclude\space\@outname.py | /usr/bin/env python > \@outname.py.out 2> \@outname.py.err; echo $? > \@outname.rc}
 \fi
 \immediate\input\@outname.py.out