diff --git a/fitsmap/convert.py b/fitsmap/convert.py
index b3e6eb5..9b1b1a0 100644
--- a/fitsmap/convert.py
+++ b/fitsmap/convert.py
@@ -1081,6 +1081,7 @@ def files_to_map(
     # to the console. These should be changed during development
     debug = os.getenv("FITSMAP_DEBUG", "False").lower() == "true"
     ray.init(
+        ignore_reinit_error=True,
         include_dashboard=debug,  # during dev == True
         configure_logging=~debug,  # during dev == False
         logging_level=logging.INFO