diff --git a/CONTRIBUTORS.txt b/CONTRIBUTORS.txt
index 1d018cb0..f395b68a 100644
--- a/CONTRIBUTORS.txt
+++ b/CONTRIBUTORS.txt
@@ -139,3 +139,6 @@
 
 - Xavier Moles Lopez
   Color separation (color deconvolution) for several stainings.
+
+- Jostein Bø Fløystad
+  Reconstruction circle mode for Radon transform