diff --git a/dvc/command/metrics.py b/dvc/command/metrics.py
index 04a663de9..18645f29c 100644
--- a/dvc/command/metrics.py
+++ b/dvc/command/metrics.py
@@ -284,7 +284,7 @@ def add_parser(subparsers, parent_parser):
             "(even if not found as `metrics` in `dvc.yaml`). "
             "Using -R, directories to search metrics files in "
             "can also be given."
-            "Shows all tracked metrics by default.",
+            "Shows all tracked metrics by default."
         ),
         metavar="<paths>",
     ).complete = completion.FILE
diff --git a/dvc/command/params.py b/dvc/command/params.py
index fec3ef8eb..717be814c 100644
--- a/dvc/command/params.py
+++ b/dvc/command/params.py
@@ -101,7 +101,7 @@ def add_parser(subparsers, parent_parser):
         help=(
             "Specific params file(s) to compare "
             "(even if not found as `params` in `dvc.yaml`). "
-            "Shows all tracked params by default.",
+            "Shows all tracked params by default."
         ),
         metavar="<paths>",
     ).complete = completion.FILE