diff --git a/features/profile.feature b/features/profile.feature
index bf82216..2b36e25 100644
--- a/features/profile.feature
+++ b/features/profile.feature
@@ -27,3 +27,12 @@ Feature: Basic profile usage
       | callback          | time   |
       | total             |        |
     And STDERR should be empty
+
+  Scenario: Trailingslash provided URL to avoid canonical redirect
+    Given a WP install
+
+    When I run `wp profile hook setup_theme --url=example.com --fields=callback,time`
+    Then STDERR should be empty
+    And STDOUT should be a table containing rows:
+      | callback          | time   |
+      | total             |        |
diff --git a/inc/class-command.php b/inc/class-command.php
index 6db8dc7..ffef001 100644
--- a/inc/class-command.php
+++ b/inc/class-command.php
@@ -267,11 +267,13 @@ class Command {
 	 * Run the profiler against WordPress
 	 */
 	private function run_profiler() {
-		if ( ! isset( WP_CLI::get_runner()->config['url'] ) ) {
-			WP_CLI::add_wp_hook( 'muplugins_loaded', function(){
+		WP_CLI::add_wp_hook( 'muplugins_loaded', function(){
+			if ( $url = WP_CLI::get_runner()->config['url'] ) {
+				WP_CLI::set_url( trailingslashit( $url ) );
+			} else {
 				WP_CLI::set_url( home_url( '/' ) );
-			});
-		}
+			}
+		});
 		WP_CLI::add_hook( 'after_wp_config_load', function() {
 			if ( defined( 'SAVEQUERIES' ) && ! SAVEQUERIES ) {
 				WP_CLI::error( "'SAVEQUERIES' is defined as false, and must be true. Please check your wp-config.php" );