diff --git a/libstdc++-v3/include/bits/c++config b/libstdc++-v3/include/bits/c++config
index 5aa4b1b955b5..d6f782cce347 100644
--- a/libstdc++-v3/include/bits/c++config
+++ b/libstdc++-v3/include/bits/c++config
@@ -35,7 +35,7 @@
 #include <bits/os_defines.h>
 
 // The current version of the C++ library in compressed ISO date format.
-#define __GLIBCXX__ 20040619
+#define __GLIBCXX__ 20040620
 
 // Allow use of "export template." This is currently not a feature
 // that g++ supports.