diff --git a/lib/meilisearch-rails.rb b/lib/meilisearch-rails.rb
index c8dda0e..f47697d 100644
--- a/lib/meilisearch-rails.rb
+++ b/lib/meilisearch-rails.rb
@@ -418,7 +418,7 @@ def meilisearch(options = {}, &block)
             proc.call(record, remove) if ::MeiliSearch::Rails.active? && !ms_without_auto_index_scope
           end
         end
-        unless options[:auto_index] == false
+        if ::MeiliSearch::Rails.active? && options[:auto_index] != false
           if defined?(::Sequel::Model) && self < Sequel::Model
             class_eval do
               copy_after_validation = instance_method(:after_validation)
diff --git a/spec/meilisearch/activation_spec.rb b/spec/meilisearch/activation_spec.rb
index 9a9a7a2..846c5e3 100644
--- a/spec/meilisearch/activation_spec.rb
+++ b/spec/meilisearch/activation_spec.rb
@@ -1,4 +1,5 @@
 require 'support/models/queued_models'
+require 'support/models/movie'
 
 describe MeiliSearch::Rails do
   it 'is active by default' do
@@ -24,6 +25,14 @@
           EnqueuedDocument.create! name: 'hello world'
         end.not_to raise_error
       end
+
+      it 'does not run callbacks on save' do
+        movie = Movie.new(title: 'Harry Potter')
+        allow(movie).to receive(:ms_index!)
+        movie.save
+
+        expect(movie).not_to have_received(:ms_index!)
+      end
     end
 
     context 'with a block' do