diff --git a/a2ps.spec b/a2ps.spec
index 96a4c8a..70723ea 100644
--- a/a2ps.spec
+++ b/a2ps.spec
@@ -173,7 +173,10 @@ find -name Makefile.in | xargs touch
  grep '(This is a test text' test.latin | iconv -f latin1 -t utf8
  chmod u+rw,g+r,o+r man/*.1
  cp -p man/a2ps.1 man/a2ps.1.backup
- patch --reject-format=unified --quoting-style=literal -f -p0 -F0 < %{S:5}
+ patch --reject-format=unified --quoting-style=literal -f -p0 -F0 < %{S:5} || cat man/a2ps.1.rej
+ if test -e man/a2ps.1.rej ; then
+    exit 1
+ fi
 
 %install
  make install DESTDIR=%{buildroot} PSFONT_PATH=%{_datadir}/ghostscript/fonts