diff --git a/configure.ac b/configure.ac
index 133b219fb..70fd00b45 100644
--- a/configure.ac
+++ b/configure.ac
@@ -25,7 +25,7 @@ dnl</LicenseText>
 # $Id$
 
 AC_PREREQ(2.59)
-AC_INIT([CitcomS], [3.3.0], [cig-mc@geodynamics.org], [CitcomS])
+AC_INIT([CitcomS], [3.3.1], [cig-mc@geodynamics.org], [CitcomS])
 AC_CONFIG_AUX_DIR([./aux-config])
 AC_CONFIG_SRCDIR([bin/Citcom.c])
 AC_CONFIG_HEADER([config.h])
diff --git a/lib/Makefile.am b/lib/Makefile.am
index 83861d11b..5feb37ed4 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -78,6 +78,7 @@ sources = \
 	General_matrix_functions.c \
 	global_defs.h \
 	Ggrd_handling.c \
+	ggrd_handling.h \
 	Global_operations.c \
 	hdf5_related.h \
 	Initial_temperature.c \