diff --git a/db/migrate/20130903123015_create_friendly_id_slugs.rb b/db/migrate/20130903123015_create_friendly_id_slugs.rb
index d8577c3..543f4f3 100644
--- a/db/migrate/20130903123015_create_friendly_id_slugs.rb
+++ b/db/migrate/20130903123015_create_friendly_id_slugs.rb
@@ -8,7 +8,7 @@
       t.datetime :created_at
     end
     add_index :friendly_id_slugs, :sluggable_id
-    add_index :friendly_id_slugs, [:slug, :sluggable_type], :unique => true
+    add_index :friendly_id_slugs, [:slug, :sluggable_type], :unique => true, :length => {:slug => 191}
     add_index :friendly_id_slugs, :sluggable_type
   end
 
diff --git a/db/migrate/20140604092907_rails_settings_migration.rb b/db/migrate/20140604092907_rails_settings_migration.rb
index 6a41dd2..98856cf 100644
--- a/db/migrate/20140604092907_rails_settings_migration.rb
+++ b/db/migrate/20140604092907_rails_settings_migration.rb
@@ -6,7 +6,7 @@
       t.references :target, :null => false, :polymorphic => true
       t.timestamps
     end
-    add_index :settings, [ :target_type, :target_id, :var ], :unique => true
+    add_index :settings, [ :target_type, :target_id, :var ], :unique => true, :length => {:var => 191}
   end
 
   def self.down