diff --git a/dask_cuda/cli.py b/dask_cuda/cli.py
index 8d335ec3..d454129a 100644
--- a/dask_cuda/cli.py
+++ b/dask_cuda/cli.py
@@ -166,11 +166,13 @@ def cuda():
 )
 @click.option(
     "--set-rmm-allocator-for-libs",
+    "rmm_allocator_external_lib_list",
     default=None,
     show_default=True,
     help="""
     Set RMM as the allocator for external libraries. Provide a comma-separated
-    list of libraries to set, e.g., "torch,cupy". Supported options are: torch, cupy.""",
+    list of libraries to set, e.g., "torch,cupy".
+    Supported options are: torch, cupy.""",
 )
 @click.option(
     "--rmm-release-threshold",