diff --git a/src/s3fs_xml.h b/src/s3fs_xml.h
index e28456b..4f514df 100644
--- a/src/s3fs_xml.h
+++ b/src/s3fs_xml.h
@@ -22,6 +22,7 @@
 #define S3FS_S3FS_XML_H_
 
 #include <libxml/xpath.h>
+#include <libxml/parser.h>  // [NOTE] nessetially include this header in some environments
 #include <memory>
 #include <string>