diff --git a/python/lsst/ts/standardscripts/maintel/take_aos_sequence_comcam.py b/python/lsst/ts/standardscripts/maintel/take_aos_sequence_comcam.py
index 4762a36a2..58b5748cb 100644
--- a/python/lsst/ts/standardscripts/maintel/take_aos_sequence_comcam.py
+++ b/python/lsst/ts/standardscripts/maintel/take_aos_sequence_comcam.py
@@ -100,7 +100,7 @@ def get_schema(cls) -> dict:
               mode:
                 description: >-
                     Mode of operation. Options are 'triplet' (default), 'intra' or 'extra'.
-                type: str
+                type: string
                 default: TRIPLET
                 enum: {[mode for mode in Mode]}
               program: