diff --git a/test/unit_tests/data_manager_test/preprocessor_test/preprocessor_test.py b/test/unit_tests/data_manager_test/preprocessor_test/preprocessor_test.py
index c66968d..bd27d7a 100644
--- a/test/unit_tests/data_manager_test/preprocessor_test/preprocessor_test.py
+++ b/test/unit_tests/data_manager_test/preprocessor_test/preprocessor_test.py
@@ -6,7 +6,7 @@
 
 def test_produce_chunks(mocker):
     pipeline = Preprocessor()
-    splitter_mock = mocker.patch('ragger.data_manager.preprocessor.preprocessor.RecursiveCharacterTextSplitter')
+    splitter_mock = mocker.patch('ragger.data_manager.preprocessor.RecursiveCharacterTextSplitter')
     splitter_mock.return_value.split_text.return_value = ['This is a test text']
     texts = ['This is a test text']
     chunks = pipeline.produce_chunks(texts)