diff --git a/sqlx-core/src/mysql/type_info.rs b/sqlx-core/src/mysql/type_info.rs
index 75153e84..cd5c3ed1 100644
--- a/sqlx-core/src/mysql/type_info.rs
+++ b/sqlx-core/src/mysql/type_info.rs
@@ -52,7 +52,11 @@ impl Display for MySqlTypeInfo {
     fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
         f.write_str(self.r#type.name(self.char_set))?;
 
-        if self.flags.contains(ColumnFlags::UNSIGNED) {
+        // NOTE: MariaDB flags timestamp columns as UNSIGNED but the type name
+        //       does not have that suffix
+        if self.flags.contains(ColumnFlags::UNSIGNED)
+            && !self.flags.contains(ColumnFlags::TIMESTAMP)
+        {
             f.write_str(" UNSIGNED")?;
         }