diff --git a/corrlib/integrity.py b/corrlib/integrity.py
index 8722840..23fbe0e 100644
--- a/corrlib/integrity.py
+++ b/corrlib/integrity.py
@@ -61,7 +61,7 @@ def _check_db2paths(path: Path, meas_paths: list[str]) -> None:
             for key in filedict.keys():
                 if key not in needed_data[file]:
                     raise ValueError(f"Found unintended key {key} in file {file}.")
-        elif not set(needed_data[file]).issubset(filedict.keys()):
+        if not set(needed_data[file]).issubset(filedict.keys()):
             for key in needed_data[file]:
                 if key not in filedict.keys():
                     raise ValueError(f"Did not find data for key {key} that should be in file {file}.")