diff --git a/README.md b/README.md
index f0ab760..1799b12 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ If RE_DOCK6 has helped in your work then you can cite it like so, but please don
 
 **RE_DOCK6:**
 
-citation coming...
+[![DOI](https://zenodo.org/badge/87030606.svg)](https://zenodo.org/badge/latestdoi/87030606)
 
 **UCSF Dock6:**