diff --git a/README.md b/README.md
index 49a0bee49a85e778daffa9285ec21148c914213f..964acc2149952b1d6cb58ec042f7fc46ce8d514e 100644
--- a/README.md
+++ b/README.md
@@ -144,6 +144,8 @@ The fdacrtmc and the 3D Marchenko code makes use of ZFP compression to store sna
 
 https://github.com/LLNL/zfp
 
+and written by Peter Lindstrom
+
 FDACRTMC
 --------
 fdacrtmc uses FFTW and the wisdom computations are stored on disk for re-usage.  This directory is defined in fdacrtmc.h