diff --git a/cli/gitaskpass.go b/cli/gitaskpass.go
index cbf5bd3315ad2..14822b9616293 100644
--- a/cli/gitaskpass.go
+++ b/cli/gitaskpass.go
@@ -51,9 +51,9 @@ func (r *RootCmd) gitAskpass() *clibase.Cmd {
 			}
 			if token.URL != "" {
 				if err := openURL(inv, token.URL); err == nil {
-					cliui.Infof(inv.Stdout, "Your browser has been opened to authenticate with Git:\n\n\t%s\n\n", token.URL)
+					cliui.Infof(inv.Stderr, "Your browser has been opened to authenticate with Git:\n\n\t%s\n\n", token.URL)
 				} else {
-					cliui.Infof(inv.Stdout, "Open the following URL to authenticate with Git:\n\n\t%s\n\n", token.URL)
+					cliui.Infof(inv.Stderr, "Open the following URL to authenticate with Git:\n\n\t%s\n\n", token.URL)
 				}
 
 				for r := retry.New(250*time.Millisecond, 10*time.Second); r.Wait(ctx); {
@@ -61,7 +61,7 @@ func (r *RootCmd) gitAskpass() *clibase.Cmd {
 					if err != nil {
 						continue
 					}
-					cliui.Infof(inv.Stdout, "You've been authenticated with Git!\n")
+					cliui.Infof(inv.Stderr, "You've been authenticated with Git!\n")
 					break
 				}
 			}
diff --git a/cli/gitaskpass_test.go b/cli/gitaskpass_test.go
index db64a522aeb57..809bc1035005f 100644
--- a/cli/gitaskpass_test.go
+++ b/cli/gitaskpass_test.go
@@ -86,17 +86,20 @@ func TestGitAskpass(t *testing.T) {
 
 		inv, _ := clitest.New(t, "--agent-url", url, "--no-open", "Username for 'https://github.com':")
 		inv.Environ.Set("GIT_PREFIX", "/")
-		pty := ptytest.New(t)
-		inv.Stdout = pty.Output()
+		stdout := ptytest.New(t)
+		inv.Stdout = stdout.Output()
+		stderr := ptytest.New(t)
+		inv.Stderr = stderr.Output()
 		go func() {
 			err := inv.Run()
 			assert.NoError(t, err)
 		}()
 		<-poll
+		stderr.ExpectMatch("Open the following URL to authenticate")
 		resp.Store(&agentsdk.GitAuthResponse{
 			Username: "username",
 			Password: "password",
 		})
-		pty.ExpectMatch("username")
+		stdout.ExpectMatch("username")
 	})
 }