diff --git a/doc/make.py b/doc/make.py
index db729853e5834..94fbfa9382d81 100755
--- a/doc/make.py
+++ b/doc/make.py
@@ -291,7 +291,7 @@ def main():
 
     joined = ", ".join(cmds)
     argparser.add_argument(
-        "command", nargs="?", default="html", help=f"command to run: {joined}",
+        "command", nargs="?", default="html", help=f"command to run: {joined}"
     )
     argparser.add_argument(
         "--num-jobs", type=int, default=0, help="number of jobs used by sphinx-build"