diff --git a/completions/ant b/completions/ant
index dd3606dc..c0205503 100644
--- a/completions/ant
+++ b/completions/ant
@@ -6,6 +6,9 @@ _ant()
     _init_completion || return
 
     case $prev in
+        -h|-help|--h|--help|-projecthelp|-p|-version|-diagnostics)
+            return 0
+            ;;
         -buildfile|-file|-f)
             _filedir 'xml'
             return 0