diff --git a/lib/galaxy/model/custom_types.py b/lib/galaxy/model/custom_types.py
index 7dc4fe2e9e2..6930b2e0492 100644
--- a/lib/galaxy/model/custom_types.py
+++ b/lib/galaxy/model/custom_types.py
@@ -271,7 +271,7 @@ class MetadataType( JSONType ):
                     sz = total_size(v)
                     if sz > app.app.config.max_metadata_value_size:
                         del value[k]
-                        log.error('Refusing to bind metadata key %s due to size (%s)' % (k, sz))
+                        log.warning('Refusing to bind metadata key %s due to size (%s)' % (k, sz))
             value = json_encoder.encode(value)
         return value