diff --git a/features/help.feature b/features/help.feature
index 175e48737e..1a3c03de32 100644
--- a/features/help.feature
+++ b/features/help.feature
@@ -87,6 +87,21 @@ Feature: Get help about WP-CLI commands
       Path to the WordPress files.
       """
 
+    When I run `WP_CLI_SUPPRESS_GLOBAL_PARAMS=false wp help`
+    Then STDOUT should contain:
+      """
+      GLOBAL PARAMETERS
+      """
+
+    And STDOUT should contain:
+      """
+      --path
+      """
+    And STDOUT should contain:
+      """
+      Path to the WordPress files.
+      """
+
   # Prior to WP 4.3 widgets & others used PHP 4 style constructors and prior to WP 3.9 wpdb used the mysql extension which can all lead (depending on PHP version) to PHP Deprecated notices.
   @require-wp-4.3
   Scenario: Help for internal commands with WP
diff --git a/php/WP_CLI/Dispatcher/CompositeCommand.php b/php/WP_CLI/Dispatcher/CompositeCommand.php
index 9fa4e76043..8d4e4f80a7 100644
--- a/php/WP_CLI/Dispatcher/CompositeCommand.php
+++ b/php/WP_CLI/Dispatcher/CompositeCommand.php
@@ -297,7 +297,7 @@ protected function get_global_params( $root_command = false ) {
 			}
 
 			// Check if global parameters synopsis should be displayed or not.
-			if ( true !== (bool) getenv( 'WP_CLI_SUPPRESS_GLOBAL_PARAMS' ) ) {
+			if ( 'true' !== getenv( 'WP_CLI_SUPPRESS_GLOBAL_PARAMS' ) ) {
 				$binding['parameters'][]   = array(
 					'synopsis' => $synopsis,
 					'desc'     => $details['desc'],