diff --git a/README.md b/README.md
index 416e5e3..90808cc 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,9 @@
    <a href="https://github.com/ccb-hms/ontology-mapper/actions/workflows/github_test.yml">
         <img alt="Tests" src="https://github.com/ccb-hms/ontology-mapper/actions/workflows/github_test.yml/badge.svg" />
    </a>
+   <a href="https://doi.org/10.48550/arXiv.2407.02626">
+        <img alt="arXiv preprint" src="https://img.shields.io/badge/DOI-arXiv:2407.02626-orange" />
+   </a>
 </div>
 
 ## Installation
@@ -305,4 +308,4 @@ The mapping score of each mapping indicates how similar an input term is to an o
 > When using the BioPortal or Zooma interfaces, make sure to specify the target ontology name(s) as they appear in BioPortal or OLS, respectively
 
 > [!NOTE]
-> Syntactic distance-based mappers and Web API-based mappers perform slowly (much slower than the TF-IDF mapper). The former because they do pairwise comparisons between each input string and each ontology term label/synonym. In the Web API-based approaches there are networking and API load overheads
\ No newline at end of file
+> Syntactic distance-based mappers and Web API-based mappers perform slowly (much slower than the TF-IDF mapper). The former because they do pairwise comparisons between each input string and each ontology term label/synonym. In the Web API-based approaches there are networking and API load overheads