diff --git a/Makefile.jetto b/Makefile.jetto
index f9e82f4..a6f312a 100644
--- a/Makefile.jetto
+++ b/Makefile.jetto
@@ -16,7 +16,7 @@ include ../include.mk
 # Alternative search paths
 vpath %.f90 src
 
-DIRECTIVES = -DEXTBES -DREVISION="rev.164 JETTO" #'$(shell svnversion src)'"
+DIRECTIVES = -DEXTBES -DREVISION="rev.166 JETTO" #'$(shell svnversion src)'"
 
 # library name
 # ------------