diff --git a/reference/spl/seekableiterator.xml b/reference/spl/seekableiterator.xml
index 612a2c2765..92316a1ea0 100644
--- a/reference/spl/seekableiterator.xml
+++ b/reference/spl/seekableiterator.xml
@@ -71,7 +71,7 @@ class MySeekableIterator implements SeekableIterator {
     /* Method required for SeekableIterator interface */
 
     public function seek($position) {
-      if (!isset($this->array[$position]) {
+      if (!isset($this->array[$position])) {
           throw new OutOfBoundsException("invalid seek position ($position)");
       }