diff --git a/fixbci.sh b/fixbci.sh
new file mode 100644
index 0000000..6fdee0e
--- /dev/null
+++ b/fixbci.sh
@@ -0,0 +1,30 @@
+# This script can be used to fix up errors in the main database.
+#
+# This fixes up an error where the CI URL prefex wasn't properly
+# added.
+
+(
+	awk '{ print $9 }' snapshot.complete.idx | grep -v ^https;
+	echo 2;
+	cat snapshot.complete.idx) |
+		awk '
+BEGIN {
+	state = 0
+}
+
+state == 0 && $0 == "2" {
+	state = 1
+	next
+}
+
+state == 0 {
+	fix[$1] = 1
+}
+
+state == 1 {
+	if ($9 in fix)
+		$9 = "https://download.freebsd.org/ftp/snapshots/CI-IMAGES/" $9
+
+	print
+}
+'