diff --git a/src/restic/prune.py b/src/restic/prune.py
index 8b94a9d..6e076c2 100644
--- a/src/restic/prune.py
+++ b/src/restic/prune.py
@@ -23,6 +23,8 @@ def convert_size(size_str: str) -> int:
         scale = 8589934592
     elif size_str.endswith('MiB'):
         scale = 8388608
+    else:
+        scale = 1
     return int(round(base_size * scale))
 
 
@@ -48,7 +50,7 @@ def prune(loki_url: str = None, dry_run: bool = False):
         sys.exit(1)
 
     d = {f['name']: {'blobs': f['blobs'], 'size': f['size']} for f in field_gen(result.stdout)}
-    console.print(d)
+    logger.debug(json.dumps(d, indent=4))
 
     if loki_url is not None and not dry_run:
         send_to_loki(loki_url, line=json.dumps(d), backup='prune')