diff --git a/sqlx-core/src/postgres/message/parse.rs b/sqlx-core/src/postgres/message/parse.rs
index 2763bb9b..2e3576de 100644
--- a/sqlx-core/src/postgres/message/parse.rs
+++ b/sqlx-core/src/postgres/message/parse.rs
@@ -27,7 +27,7 @@ impl Encode<'_> for Parse<'_> {
             buf.put_str_nul(self.query);
 
             // TODO: Return an error here instead
-            assert!(self.param_types.len() <= (i16::MAX as usize));
+            assert!(self.param_types.len() <= (u16::MAX as usize));
 
             buf.extend(&(self.param_types.len() as i16).to_be_bytes());
 
diff --git a/tests/sqlite/derives.rs b/tests/sqlite/derives.rs
index fa725de1..bbbc3d67 100644
--- a/tests/sqlite/derives.rs
+++ b/tests/sqlite/derives.rs
@@ -4,8 +4,8 @@ use sqlx_test::{new, test_type};
 #[derive(Debug, PartialEq, sqlx::Type)]
 #[repr(u32)]
 enum Origin {
-  Foo = 1,
-  Bar = 2,
+    Foo = 1,
+    Bar = 2,
 }
 
 test_type!(origin_enum<Origin>(Sqlite,