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-rw-r--r--gn3/db/datasets.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/gn3/db/datasets.py b/gn3/db/datasets.py
index 38cd16c..4fdf797 100644
--- a/gn3/db/datasets.py
+++ b/gn3/db/datasets.py
@@ -15,7 +15,7 @@ def retrieve_sample_list(group: str):
     samplelist = []
     genofile_path = os.environ.get("GENENETWORK_FILES") + "/genotype/" + group + ".geno"
     if os.path.isfile(genofile_path):
-        with open(genofile_path, "r") as genofile:
+        with open(genofile_path, encoding="utf-8") as genofile:
             line = ""
             for line in genofile:
                 line = line.strip()