diff --git a/src/wp-includes/class-wp-query.php b/src/wp-includes/class-wp-query.php
index 49ac5540c5..a2451bcd01 100644
--- a/src/wp-includes/class-wp-query.php
+++ b/src/wp-includes/class-wp-query.php
@@ -759,7 +759,7 @@ class WP_Query {
 			$this->is_favicon = true;
 		}
 
-		if ( ! is_scalar( $qv['p'] ) || $qv['p'] < 0 ) {
+		if ( ! is_scalar( $qv['p'] ) || (int) $qv['p'] < 0 ) {
 			$qv['p']     = 0;
 			$qv['error'] = '404';
 		} else {