diff --git a/CITATION.cff b/CITATION.cff
index 5a43539..3c5f323 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -16,4 +16,5 @@ repository-code: "https://gitea.psi.ch/fattori_g/reg23Topograms"
 license: "BSD-3-Clause"
 keywords:
   - 2D/3D registration
+  - Digitally Reconstructed Topograms (DRT)
   - CT topogram imaging
\ No newline at end of file