diff --git a/README.md b/README.md
index aea7e10aa38457c23429114de75536ad14f10575..2ebe4a225bf15ffeac578e65f64433c8f95bf5bb 100644
--- a/README.md
+++ b/README.md
@@ -79,7 +79,9 @@ MacOS:
 Sample input data are provided, with the refence output for installation check.
 
 Input files:
+
 counts_healpix_full_clean_gt20MeV.fits
+
 exposure_healpix_full_clean_gt20MeV.fits