diff --git a/migrations/dlu/1_unique_charinfo_names.sql b/migrations/dlu/1_unique_charinfo_names.sql
new file mode 100644
index 00000000..cdf2537c
--- /dev/null
+++ b/migrations/dlu/1_unique_charinfo_names.sql
@@ -0,0 +1 @@
+ALTER TABLE charinfo ADD UNIQUE (name);
\ No newline at end of file