diff --git a/.gitignore b/.gitignore
index 5139364..483e4e3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@ clog
 /libsodium-1.0.16.tar.gz
 /libsodium-1.0.17.tar.gz
 /libsodium-1.0.18.tar.gz
+/libsodium-1.0.18.tar.gz.sig
diff --git a/sources b/sources
index 489a80a..adacafe 100644
--- a/sources
+++ b/sources
@@ -1 +1,2 @@
 SHA512 (libsodium-1.0.18.tar.gz) = 17e8638e46d8f6f7d024fe5559eccf2b8baf23e143fadd472a7d29d228b186d86686a5e6920385fe2020729119a5f12f989c3a782afbd05a8db4819bb18666ef
+SHA512 (libsodium-1.0.18.tar.gz.sig) = ba69d372263e63126d6ce24f67fe85d83f74e558db81391ddcd7eacb6787dcdd5209a149eebca897e9806f295e78f5a8ababa0ab884b85d9a8dd1a54507a8b0c