diff --git a/src/endpoints/bettwaage.py b/src/endpoints/bettwaage.py
index 6c2abf5..a3ee5c3 100644
--- a/src/endpoints/bettwaage.py
+++ b/src/endpoints/bettwaage.py
@@ -9,6 +9,7 @@ import csv
 router = APIRouter()
 
 file_path = "bettwaage.csv"
+header = "timestamp;tl;tr;bl;br;total;"
 
 latest_values = []
 zero_values = [0, 0, 0, 0]
@@ -16,7 +17,7 @@ scale_values = [1, 1, 1, 1]
 
 
 def add_line_to_history(line: str) -> None:
-    with open(file_path, "a", encoding="UTF-8") as fp:
+    with open(file_path, "a") as fp:
         fp.write(line + "\n")
 
 
@@ -90,7 +91,7 @@ async def get_latest():
 @router.delete("/delete", tags=["file"])
 async def delete_file():
     os.remove(file_path)
-    add_line_to_history("timestamp;tl;tr;bl;br;total;")
+    add_line_to_history(header)
     return "Deleted file and created new file with headers"
 
 
@@ -113,4 +114,4 @@ async def set_scales(tl: float, tr: float, bl: float, br: float):
 
 
 if not os.path.exists(file_path):
-    add_line_to_history("timestamp;tl;tr;bl;br;total;")
+    add_line_to_history(header)