diff --git a/resolve/ubik_tools/fits.py b/resolve/ubik_tools/fits.py
index b034ebe7fe9b7c6a7c3f8a47ebb751240f463cac..2c2bbb552d0447a1e356090ba20526d3845cb4fa 100644
--- a/resolve/ubik_tools/fits.py
+++ b/resolve/ubik_tools/fits.py
@@ -107,4 +107,7 @@ def field2fits(field, file_name, observations=[], header_override={}):
         hdu = pyfits.PrimaryHDU(val, header=h)
         hdulist = pyfits.HDUList([hdu])
         base, ext = splitext(file_name)
-        hdulist.writeto(base + f"time{t_val}" + ext, overwrite=True)
+        if len(tdom.coordinates) == 1:
+            hdulist.writeto(base + ext, overwrite=True)
+        else:
+            hdulist.writeto(base + f"time{t_val}" + ext, overwrite=True)