diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 3b049348c3..40b3d99737 100755
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -626,6 +626,8 @@ _git_bundle ()
 
 _git_checkout ()
 {
+	__git_has_doubledash && return
+
 	__gitcomp "$(__git_refs)"
 }