diff --git a/compare_checksums.py b/compare_checksums.py
index 2ba28f6..bde9e10 100644
--- a/compare_checksums.py
+++ b/compare_checksums.py
@@ -58,11 +58,11 @@ def batch_check():
         remote_checksum = get_remote_checksum(local_backup_path)
         local_checksum = get_local_checksum(local_backup_path)
         if remote_checksum is None:
-            print("?    {local_checksum} -> (error)")
+            print(f"?    {local_checksum} -> (error)")
         elif remote_checksum == local_checksum:
-            print("     {local_checksum} -> {remote_checksum}")
+            print(f"     {local_checksum} -> {remote_checksum}")
         else:
-            print("XXX  {local_checksum} -> {remote_checksum}")
+            print(f"XXX  {local_checksum} -> {remote_checksum}")
 
 
 if __name__ == "__main__":