diff --git a/source/internationalization.cpp b/source/internationalization.cpp
index 375b7434..3c0f13ee 100644
--- a/source/internationalization.cpp
+++ b/source/internationalization.cpp
@@ -78,6 +78,7 @@ namespace nana
 							if (escape)
 							{
 								escape = false;
+								str_ += '\\';
 								str_ += *i;
 								continue;
 							}