diff --git a/.criu.metadata b/.criu.metadata
new file mode 100644
index 0000000..f0b4153
--- /dev/null
+++ b/.criu.metadata
@@ -0,0 +1 @@
+b2ceaf9705aa8239915010136a59664d31044fe3 criu-3.12.tar.bz2
diff --git a/.gitignore b/.gitignore
index d9f1e8d..c3e6cce 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 SOURCES/criu-3.12.tar.bz2
+/criu-3.12.tar.bz2
diff --git a/sources b/sources
index 29b4af9..2437c1d 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA1 (criu-3.12.tar.bz2) = b2ceaf9705aa8239915010136a59664d31044fe3
+SHA512 (criu-3.12.tar.bz2) = bb810d42da6e6dfa47a6675f258ef528a5be02eec663dc85e73532f9a291a8594f1642b0df2fbb4683c9555cb62af23597603ae0007e1b3be79d7ad7b77a60f0