diff --git a/system/HTTP/RedirectResponse.php b/system/HTTP/RedirectResponse.php
index ad9f70b51cee..a2e31a866483 100644
--- a/system/HTTP/RedirectResponse.php
+++ b/system/HTTP/RedirectResponse.php
@@ -91,7 +91,7 @@ public function route(string $route, array $params = [], int $code = 302, string
 			throw HTTPException::forInvalidRedirectRoute($route);
 		}
 
-		return $this->redirect(base_url($route), $method, $code);
+		return $this->redirect(site_url($route), $method, $code);
 	}
 
 	/**
diff --git a/tests/system/HTTP/RedirectResponseTest.php b/tests/system/HTTP/RedirectResponseTest.php
index ec23c3a2da99..d452444236fe 100644
--- a/tests/system/HTTP/RedirectResponseTest.php
+++ b/tests/system/HTTP/RedirectResponseTest.php
@@ -3,6 +3,7 @@
 namespace CodeIgniter\HTTP;
 
 use Config\App;
+use CodeIgniter\Config\Config;
 use CodeIgniter\Config\Services;
 use CodeIgniter\Validation\Validation;
 use CodeIgniter\Router\RouteCollection;
@@ -67,6 +68,27 @@ public function testRedirectRoute()
 		$this->assertEquals('http://example.com/exampleRoute', $response->getHeaderLine('Location'));
 	}
 
+	public function testRedirectRouteBaseUrl()
+	{
+		$config          = new App();
+		$config->baseURL = 'http://example.com/test/';
+		Config::injectMock('App', $config);
+
+		$request = new MockIncomingRequest($config, new URI('http://example.com/test/'), null, new UserAgent());
+		Services::injectMock('request', $request);
+
+		$response = new RedirectResponse(new App());
+
+		$this->routes->add('exampleRoute', 'Home::index');
+
+		$response->route('exampleRoute');
+
+		$this->assertTrue($response->hasHeader('Location'));
+		$this->assertEquals('http://example.com/test/index.php/exampleRoute', $response->getHeaderLine('Location'));
+
+		Config::reset();
+	}
+
 	public function testRedirectRouteBad()
 	{
 		$this->expectException(Exceptions\HTTPException::class);