diff --git a/.gitignore b/.gitignore
index e69de29..7fbdcd5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1 @@
+/libpreludedb-3.1.0.tar.gz
diff --git a/sources b/sources
index 6bc0d78..10d9aa8 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-d8a0b70a5be3ac101fba42bb5b18249f  libpreludedb-3.1.0.tar.gz
+SHA512 (libpreludedb-3.1.0.tar.gz) = dcb98eff2521979c2956bdd6f3b661c346c0f6748ef820a75d77c948e426a996de26c7fc6b6c2abddc93277db3820eb2f44b61c87feb86483e720cf9b0e0124c