diff --git a/.gitignore b/.gitignore
index 0b18607..a0d07b8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 SOURCES/IPC-System-Simple-1.25.tar.gz
+/IPC-System-Simple-1.25.tar.gz
diff --git a/sources b/sources
index 24e4d14..3047c36 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA1 (IPC-System-Simple-1.25.tar.gz) = fb50f4f27407c81bb884073bd9bc5cf75f4841f1
+SHA512 (IPC-System-Simple-1.25.tar.gz) = fda275786605eb80acaa6062cc51c32aa0e84f150e7ca7afcfe874f088ce7b8f9a97669e91bec24fdb05426db8b0f05552aa8853e44b08996e625281d1892f72