diff --git a/src/lexer/statements/postgres/alter.ts b/src/lexer/statements/postgres/alter.ts
index 86fbf98..46a657b 100644
--- a/src/lexer/statements/postgres/alter.ts
+++ b/src/lexer/statements/postgres/alter.ts
@@ -20,6 +20,7 @@ class PostgresAlter implements ILexer {
     "server",
     "table",
     "tablespace",
+    "type",
     "view",
   ];
 
diff --git a/test/unit/checker/checks/postgres/postgresInvalidAlterOption.test.ts b/test/unit/checker/checks/postgres/postgresInvalidAlterOption.test.ts
index bb65258..40c32bc 100644
--- a/test/unit/checker/checks/postgres/postgresInvalidAlterOption.test.ts
+++ b/test/unit/checker/checks/postgres/postgresInvalidAlterOption.test.ts
@@ -15,6 +15,7 @@ test.each([
   ["ALTER server;"],
   ["ALTER table;"],
   ["ALTER tablespace;"],
+  ["ALTER TYPE blah;"],
   ["ALTER view;"],
 ])("it does not error about valid ALTER options", (query) => {
   const checker = new PostgresInvalidAlterOption();