diff --git a/imagick_class.c b/imagick_class.c
index ad88457d..1ef93bfe 100644
--- a/imagick_class.c
+++ b/imagick_class.c
@@ -712,7 +712,7 @@ PHP_METHOD(Imagick, getIteratorIndex)
 */
 PHP_METHOD(Imagick, setIteratorIndex)
 {
-	const im_long index;
+	im_long index;
 	MagickBooleanType status;
 	php_imagick_object *intern;