diff --git a/debian/README.test b/debian/README.test
index fa6589f..ae9535f 100644
--- a/debian/README.test
+++ b/debian/README.test
@@ -5,6 +5,16 @@
 
     sh run-unit-test
 
-in order to confirm its integrity.  Please make sure that the package
-python3-nanoget-examples that provides example data is installed.
+in order to confirm its integrity.
 
+
+Build time tests
+────────────────
+
+Test data are not readily available in upstream repository, but can be
+retrieved from another repository, from the same author, seemingly dedicated to
+test data:
+
+	https://github.com/conchoecia/beroe_forskalii_mitogenome/tree/master/gff_files
+
+Those are made available inside debian/tests/gff_files.