diff --git a/root/scripts/update.py b/root/scripts/update.py
index 152c8f1..66d8ac1 100644
--- a/root/scripts/update.py
+++ b/root/scripts/update.py
@@ -20,10 +20,12 @@ def main():
         safeConfigParser.set("Converter", "threads", os.environ.get("CONVERTER_THREADS"))
     if os.environ.get("CONVERTER_HWACCELS"):
         safeConfigParser.set("Converter", "hwaccels", os.environ.get("CONVERTER_HWACCELS"))
+    else:
+        safeConfigParser.set("Converter", "hwaccels", " ")
     if os.environ.get("CONVERTER_HWACCEL_DECODERS"):
         safeConfigParser.set("Converter", "hwaccel-decoders", os.environ.get("CONVERTER_HWACCEL_DECODERS"))
-    if os.environ.get("CONVERTER_THREADS"):
-        safeConfigParser.set("Converter", "threads", os.environ.get("CONVERTER_THREADS"))
+    else:
+        safeConfigParser.set("Converter", "hwaccel-decoders", " ")
     if os.environ.get("CONVERTER_OUTPUT_FORMAT"):    
         safeConfigParser.set("Converter", "output-format", os.environ.get("CONVERTER_OUTPUT_FORMAT"))
     if os.environ.get("CONVERTER_OUTPUT_EXTENSION"):