diff --git a/README.md b/README.md
index ce159c1..b66db36 100644
--- a/README.md
+++ b/README.md
@@ -13,3 +13,5 @@ CRISPhieRmix::CRISPhieRmix(x = log2fc, geneIds = geneIds, negCtrl = log2fc.negCt
 Full details on how to use CRISPhieRmix, with detailed instructions and examples can be found in the manual and vignette, in the vignette section. 
 
 If you have any questions or comments, please email me at tdaley@stanford.edu.  For any issues with the software, please create an issue through github with the Issues link above.  
+
+CRISPhieRmix is distributed with a GPL license, for full details see the file gpl-3.0.txt.