diff --git a/src/common/xml_element_writer.cpp b/src/common/xml_element_writer.cpp
index 260eb3499..d5a7078f6 100644
--- a/src/common/xml_element_writer.cpp
+++ b/src/common/xml_element_writer.cpp
@@ -233,7 +233,7 @@ xml_formatter_c::write_header() {
     throw xml_formatter_error_c("The header has already been written.");
 
 #if defined(SYS_WINDOWS)
-  m_out->use_dos_style_newlines(yes);
+  m_out->use_dos_style_newlines(true);
 #endif
   m_out->write_bom(m_encoding);
   m_out->printf("<?xml version=\"1.0\" encoding=\"%s\"?>\n",