diff --git a/include/minix/config.h b/include/minix/config.h
index 90098c7ef..ec9cb19b7 100755
--- a/include/minix/config.h
+++ b/include/minix/config.h
@@ -3,7 +3,7 @@
 
 /* Minix release and version numbers. */
 #define OS_RELEASE "3"
-#define OS_VERSION "1.2-B4"
+#define OS_VERSION "1.2-B5"
 
 /* This file sets configuration parameters for the MINIX kernel, FS, and PM.
  * It is divided up into two main sections.  The first section contains