diff --git a/bilby/gw/detector/networks.py b/bilby/gw/detector/networks.py
index 494c6310779b686ca02ec8b459283394782975c9..88f6e681a6fb3b479cbe3d94564572d941893794 100644
--- a/bilby/gw/detector/networks.py
+++ b/bilby/gw/detector/networks.py
@@ -359,7 +359,7 @@ def get_empty_interferometer(name):
     """
     filename = os.path.join(os.path.dirname(__file__), 'detectors', '{}.interferometer'.format(name))
     try:
-        logger.info()
+        logger.warning(filename)
         return load_interferometer(filename)
     except OSError:
         raise ValueError('Interferometer {} not implemented'.format(name))