diff --git a/academic/abntex/Makefile.diff b/academic/abntex/Makefile.diff
index cc8f97e591..f72ddef812 100644
--- a/academic/abntex/Makefile.diff
+++ b/academic/abntex/Makefile.diff
@@ -16,7 +16,7 @@
 -export LYXDIR=${dir ${shell  find /usr/share/lyx -name chkconfig.ltx}}
 +export LYXDIR=${dir ${shell  find /usr/share/lyx -name chkconfig.ltx}}
 +ifneq (${LYXDIR},)
-+export LYXDIR=${DESTDIR}/${LYXDIR}
++export LYXDIR:=${DESTDIR}/${LYXDIR}
 +endif
  
  #diretório corrente onde se expandiu o cvs do abntex