diff --git a/sql/patch_32_33.sql b/sql/patch_32_33.sql
new file mode 100644
index 0000000000000000000000000000000000000000..6d88157b4f1a3a8a274196959930d3959cfccbdc
--- /dev/null
+++ b/sql/patch_32_33.sql
@@ -0,0 +1,4 @@
+# SQL to patch a release 32 Ensembl database schema to release 33
+
+# Add db_display_name column to external_db
+ALTER TABLE external_db ADD COLUMN db_display_name VARCHAR(255);