diff --git a/Zend/zend_compile.c b/Zend/zend_compile.c
index 862f82da01d..8674f924713 100644
--- a/Zend/zend_compile.c
+++ b/Zend/zend_compile.c
@@ -5687,7 +5687,7 @@ void zend_do_shell_exec(znode *result, const znode *cmd TSRMLS_DC) /* {{{ */
 			break;
 	}
 	SET_NODE(opline->op1, cmd);
-	opline->op2.opline_num = 0;
+	opline->op2.opline_num = 1;
 	opline->extended_value = ZEND_DO_FCALL;
 	SET_UNUSED(opline->op2);