diff --git a/Zend/zend_language_scanner.l b/Zend/zend_language_scanner.l
index 4aa024a69ad..7b5a8ab1c87 100644
--- a/Zend/zend_language_scanner.l
+++ b/Zend/zend_language_scanner.l
@@ -2531,6 +2531,7 @@ skip_escape_conversion:
 	}
 
 	heredoc_label->label = estrndup(s, heredoc_label->length);
+	heredoc_label->indentation_uses_spaces = 0;
 	heredoc_label->indentation = 0;
 	saved_cursor = YYCURSOR;