diff --git a/sdrf_pipelines/normalyzerde/normalyzerde.py b/sdrf_pipelines/normalyzerde/normalyzerde.py
index c52c85e..a01a8b6 100644
--- a/sdrf_pipelines/normalyzerde/normalyzerde.py
+++ b/sdrf_pipelines/normalyzerde/normalyzerde.py
@@ -25,7 +25,6 @@ def convert_normalyzerde_design(
         sdrf.columns = map(str.lower, sdrf.columns)  # convert column names to lower-case
         data = {}
         condition = []
-        []
         runs = sdrf["comment[data file]"].tolist()
         source_names = sdrf["source name"].tolist()