diff --git a/edit-comic.php b/edit-comic.php
index 2ce79cb..255ae6e 100644
--- a/edit-comic.php
+++ b/edit-comic.php
@@ -150,7 +150,7 @@ if( $_POST ) {
 			$strip->id++;
 		}
 		$strip->id = $strip->new_id;
-		close($f);
+		fclose($f);
 	}
 }