1 files changed, 6 insertions, 6 deletions

diff --git a/include/dbus.h b/include/dbus.h
index e7ccb0b4..3d39eff4 100644
--- a/include/dbus.h
+++ b/include/dbus.h
@@ -77,29 +77,29 @@ extern "C" {
 DBusConnection *ofono_dbus_get_connection(void);
 
 void ofono_dbus_dict_append(DBusMessageIter *dict, const char *key, int type,
-				void *value);
+				const void *value);
 
 void ofono_dbus_dict_append_array(DBusMessageIter *dict, const char *key,
-					int type, void *val);
+					int type, const void *val);
 
 void ofono_dbus_dict_append_dict(DBusMessageIter *dict, const char *key,
-					int type, void *val);
+					int type, const void *val);
 
 int ofono_dbus_signal_property_changed(DBusConnection *conn, const char *path,
 					const char *interface, const char *name,
-					int type, void *value);
+					int type, const void *value);
 
 int ofono_dbus_signal_array_property_changed(DBusConnection *conn,
 						const char *path,
 						const char *interface,
 						const char *name, int type,
-						void *value);
+						const void *value);
 
 int ofono_dbus_signal_dict_property_changed(DBusConnection *conn,
 						const char *path,
 						const char *interface,
 						const char *name, int type,
-						void *value);
+						const void *value);
 
 #ifdef __cplusplus
 }