diff --git a/config.h.in b/config.h.in
index 333e69723..88b156eb0 100644
--- a/config.h.in
+++ b/config.h.in
@@ -60,7 +60,7 @@ const static char * _info_msg=
 #ifdef XDR_FILE
 "\nWith gromacs XDR file conversion support"
 #endif
-"\nv0.5.1"
+"\nv0.5.2"
 ;