diff --git a/command/pr_review.go b/command/pr_review.go
index 9754c178b..1ecc7f8bc 100644
--- a/command/pr_review.go
+++ b/command/pr_review.go
@@ -53,7 +53,7 @@ func processReviewOpt(cmd *cobra.Command) (*api.PullRequestReviewInput, error) {
 	}
 
 	if found != 1 {
-		return nil, errors.New("need exactly one of approve, request-changes, or comment")
+		return nil, errors.New("need exactly one of --approve, --request-changes, or --comment")
 	}
 
 	val, err := cmd.Flags().GetString(flag)
diff --git a/command/pr_review_test.go b/command/pr_review_test.go
index eb96f8dd2..f37a609d8 100644
--- a/command/pr_review_test.go
+++ b/command/pr_review_test.go
@@ -17,7 +17,7 @@ func TestPRReview_validation(t *testing.T) {
 	} {
 		http.StubRepoResponse("OWNER", "REPO")
 		_, err := RunCommand(cmd)
-		eq(t, err.Error(), "did not understand desired review action: need exactly one of approve, request-changes, or comment")
+		eq(t, err.Error(), "did not understand desired review action: need exactly one of --approve, --request-changes, or --comment")
 	}
 }