diff --git a/api/queries_pr.go b/api/queries_pr.go
index ad4f23644..882627055 100644
--- a/api/queries_pr.go
+++ b/api/queries_pr.go
@@ -1144,7 +1144,7 @@ func PullRequestReopen(client *Client, repo ghrepo.Interface, pr *PullRequest) e
 	return err
 }
 
-func PullRequestMerge(client *Client, repo ghrepo.Interface, pr *PullRequest, m PullRequestMergeMethod) error {
+func PullRequestMerge(client *Client, repo ghrepo.Interface, pr *PullRequest, m PullRequestMergeMethod, body *string) error {
 	mergeMethod := githubv4.PullRequestMergeMethodMerge
 	switch m {
 	case PullRequestMergeMethodRebase:
@@ -1170,6 +1170,10 @@ func PullRequestMerge(client *Client, repo ghrepo.Interface, pr *PullRequest, m
 		commitHeadline := githubv4.String(fmt.Sprintf("%s (#%d)", pr.Title, pr.Number))
 		input.CommitHeadline = &commitHeadline
 	}
+	if body != nil {
+		commitBody := githubv4.String(*body)
+		input.CommitBody = &commitBody
+	}
 
 	variables := map[string]interface{}{
 		"input": input,
diff --git a/main b/main
new file mode 100755
index 000000000..48c782755
Binary files /dev/null and b/main differ
diff --git a/pkg/cmd/pr/merge/merge.go b/pkg/cmd/pr/merge/merge.go
index 4cac24242..b060c7c11 100644
--- a/pkg/cmd/pr/merge/merge.go
+++ b/pkg/cmd/pr/merge/merge.go
@@ -31,6 +31,9 @@ type MergeOptions struct {
 	DeleteBranch bool
 	MergeMethod  api.PullRequestMergeMethod
 
+	Body        string
+	BodyChanged bool
+
 	IsDeleteBranchIndicated bool
 	CanDeleteLocalBranch    bool
 	InteractiveMode         bool
@@ -95,6 +98,8 @@ func NewCmdMerge(f *cmdutil.Factory, runF func(*MergeOptions) error) *cobra.Comm
 			opts.IsDeleteBranchIndicated = cmd.Flags().Changed("delete-branch")
 			opts.CanDeleteLocalBranch = !cmd.Flags().Changed("repo")
 
+			opts.BodyChanged = cmd.Flags().Changed("body")
+
 			if runF != nil {
 				return runF(opts)
 			}
@@ -103,6 +108,7 @@ func NewCmdMerge(f *cmdutil.Factory, runF func(*MergeOptions) error) *cobra.Comm
 	}
 
 	cmd.Flags().BoolVarP(&opts.DeleteBranch, "delete-branch", "d", false, "Delete the local and remote branch after merge")
+	cmd.Flags().StringVarP(&opts.Body, "body", "b", "", "Body for merge commit")
 	cmd.Flags().BoolVarP(&flagMerge, "merge", "m", false, "Merge the commits with the base branch")
 	cmd.Flags().BoolVarP(&flagRebase, "rebase", "r", false, "Rebase the commits onto the base branch")
 	cmd.Flags().BoolVarP(&flagSquash, "squash", "s", false, "Squash the commits into one commit and merge it into the base branch")
@@ -147,7 +153,12 @@ func mergeRun(opts *MergeOptions) error {
 			}
 		}
 
-		err = api.PullRequestMerge(apiClient, baseRepo, pr, mergeMethod)
+		var body *string = nil
+		if opts.BodyChanged {
+			body = &opts.Body
+		}
+
+		err = api.PullRequestMerge(apiClient, baseRepo, pr, mergeMethod, body)
 		if err != nil {
 			return err
 		}