1 files changed, 1 insertions, 1 deletions

diff --git a/makefile b/makefile
index 9beff49..7ec9fe0 100644
--- a/makefile
+++ b/makefile
@@ -12,7 +12,7 @@ pdf: clean
 clean:
         rm -rf .backup
         find -iname "*~" | xargs rm -rf
-        find ./* -type f | grep 'makefile\|\.md$$\|\.png$$\|\.tex$$' > ls-R
+        find ./* -type f | grep 'makefile\|\.md$$\|\.png$$\|\.bib$$\|\.tex$$' > ls-R
         rsync -avPr --files-from=ls-R . .backup
 #       cp ls-R .backup
         rm -rf *