diff --git a/db/migrations/000005_buildtime.down.sql b/db/migrations/000005_buildtime.down.sql
new file mode 100644
index 00000000..2c83f8ef
--- /dev/null
+++ b/db/migrations/000005_buildtime.down.sql
@@ -0,0 +1,2 @@
+ALTER TABLE activity DROP COLUMN buildtime;
+ALTER TABLE activity DROP COLUMN osrelease;
diff --git a/db/migrations/000005_buildtime.up.sql b/db/migrations/000005_buildtime.up.sql
new file mode 100644
index 00000000..1006efa1
--- /dev/null
+++ b/db/migrations/000005_buildtime.up.sql
@@ -0,0 +1,2 @@
+ALTER TABLE activity ADD COLUMN buildtime varchar(20) NOT NULL DEFAULT '-';
+ALTER TABLE activity ADD COLUMN osrelease varchar(20) NOT NULL DEFAULT '-';