diff --git a/smartling.install b/smartling.install
index 2f70e53..7b82e9d 100644
--- a/smartling.install
+++ b/smartling.install
@@ -238,10 +238,10 @@ function smartling_schema() {
       ),
       'submitter' => array(
         'description' => 'Submitter',
-        'type' => 'varchar',
-        'length' => 255,
+        'type' => 'int',
+        'unsigned' => TRUE,
         'not null' => TRUE,
-        'default' => '',
+        'default' => 0,
       ),
       'submission_date' => array(
         'description' => 'The Unix timestamp when the entity was created.',
@@ -424,3 +424,18 @@ function smartling_update_7210() {
 
   db_change_field('smartling_entity_data', 'rid', 'rid', $field_spec);
 }
+
+/**
+ * Change the 'submitter' column to an integer.
+ */
+function smartling_update_7211() {
+  $field_spec = array(
+    'description' => 'Submitter',
+    'type' => 'int',
+    'unsigned' => TRUE,
+    'not null' => TRUE,
+    'default' => 0,
+  );
+
+  db_change_field('smartling_entity_data', 'submitter', 'submitter', $field_spec);
+}