diff --git a/borgmatic/commands/completion.py b/borgmatic/commands/completion.py
index 0755be0e1..a9c787852 100644
--- a/borgmatic/commands/completion.py
+++ b/borgmatic/commands/completion.py
@@ -5,7 +5,7 @@ Your bash completions script is from a different version of borgmatic than is
 currently installed. Please upgrade your script so your completions match the
 command-line flags in your installed borgmatic! Try this to upgrade:
 
-    sudo sh -c "borgmatic --bash-completions > $BASH_SOURCE"
+    sudo sh -c "borgmatic --bash-completion > $BASH_SOURCE"
     source $BASH_SOURCE
 '''