diff --git a/paper.bib b/paper.bib
index 8ba8bb0e9..b9c64beac 100644
--- a/paper.bib
+++ b/paper.bib
@@ -41,7 +41,7 @@ @INPROCEEDINGS{miriad
   editor = {{Shaw}, R.~A. and {Payne}, H.~E. and {Hayes}, J.~J.~E.},
   pages = {433},
   adsurl = {http://adsabs.harvard.edu/abs/1995ASPC...77..433S},
-  adsnote = {Provided by the SAO/NASA Astrophysics Data System}
+  adsnote = {Provided by the SAO/NASA Astrophysics Data System},
   url = {http://www.atnf.csiro.au/computing/software/miriad/}
 }
 
@@ -75,7 +75,7 @@ @ARTICLE{fhd
   pages = {17},
   doi = {10.1088/0004-637X/759/1/17},
   adsurl = {http://adsabs.harvard.edu/abs/2012ApJ...759...17S},
-  adsnote = {Provided by the SAO/NASA Astrophysics Data System}
+  adsnote = {Provided by the SAO/NASA Astrophysics Data System},
   url = {https://github.com/EoRImaging/FHD}
 }