diff --git a/migrations/004.location-date-size-like.up.sql b/migrations/004.location-date-size-like.up.sql
index 9e41aad1..391e6275 100644
--- a/migrations/004.location-date-size-like.up.sql
+++ b/migrations/004.location-date-size-like.up.sql
@@ -84,6 +84,3 @@ CREATE TABLE IF NOT EXISTS building_user_likes (
 );
 CREATE INDEX building_likes_idx ON building_user_likes ( building_id );
 CREATE INDEX user_likes_idx ON building_user_likes ( user_id );
-
--- One like per-building, per-user
--- ALTER TABLE building_user_likes ADD CONSTRAINT building_like_once UNIQUE (building_id, user_id);
diff --git a/migrations/005.limit-likes.down.sql b/migrations/005.limit-likes.down.sql
new file mode 100644
index 00000000..96a4261e
--- /dev/null
+++ b/migrations/005.limit-likes.down.sql
@@ -0,0 +1,2 @@
+-- Don't limit likes
+ALTER TABLE building_user_likes DROP CONSTRAINT building_like_once;
diff --git a/migrations/005.limit-likes.up.sql b/migrations/005.limit-likes.up.sql
new file mode 100644
index 00000000..3581b2f2
--- /dev/null
+++ b/migrations/005.limit-likes.up.sql
@@ -0,0 +1,2 @@
+-- One like per-building, per-user
+ALTER TABLE building_user_likes ADD CONSTRAINT building_like_once UNIQUE (building_id, user_id);