diff --git a/src/wp-includes/class-wp-simplepie-file.php b/src/wp-includes/class-wp-simplepie-file.php
index a0125aaf1d..6d68b6ca40 100644
--- a/src/wp-includes/class-wp-simplepie-file.php
+++ b/src/wp-includes/class-wp-simplepie-file.php
@@ -64,7 +64,7 @@ class WP_SimplePie_File extends SimplePie_File {
 				$args['headers'] = $this->headers;
 			}
 
-			if ( SIMPLEPIE_USERAGENT != $this->useragent ) { // Use default WP user agent unless custom has been specified.
+			if ( SIMPLEPIE_USERAGENT !== $this->useragent ) { // Use default WP user agent unless custom has been specified.
 				$args['user-agent'] = $this->useragent;
 			}