diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
index 2f8036d1d914ea54e4eabae3afbdca5f4a06ab43..c0bf7aade66b4d434653c885e52d6814d9cdf1c7 100755
--- a/contrib/completion/git-completion.bash
+++ b/contrib/completion/git-completion.bash
@@ -972,6 +972,7 @@ _git_log ()
 			--decorate --diff-filter=
 			--color-words --walk-reflogs
 			--parents --children --full-history
+			--merge
 			"
 		return
 		;;