diff --git a/docs/functionalities/biology/quick-use.md b/docs/functionalities/biology/quick-use.md
index 6128c6df..f7fe53e1 100644
--- a/docs/functionalities/biology/quick-use.md
+++ b/docs/functionalities/biology/quick-use.md
@@ -17,7 +17,7 @@ from eds_scikit.biology import prepare_measurement_table, ConceptsSet
 
 custom_leukocytes = ConceptsSet("Custom_Leukocytes")
 
-custom_leukocytes.add_concept_codes(concept_codes=['A0174', 'H6740'], 
+custom_leukocytes.add_concept_codes(concept_codes=['A0174', 'H6740'],
                                     terminology='GLIMS_ANABIO') # (1)
 
 custom_leukocytes.add_concept_codes(concept_codes=['6690-2'],