diff --git a/obexd/src/phonebook.c b/obexd/src/phonebook.c
index b81e774..70bcc68 100644
--- a/obexd/src/phonebook.c
+++ b/obexd/src/phonebook.c
@@ -27,12 +27,15 @@
 
 #include <glib.h>
 
+#include "logging.h"
 #include "phonebook.h"
 
 static GSList *driver_list = NULL;
 
 int phonebook_driver_register(struct phonebook_driver *driver)
 {
+	DBG("driver %p name %s", driver, driver->name);
+
 	driver_list = g_slist_append(driver_list, driver);
 
 	return 0;
@@ -40,10 +43,12 @@ int phonebook_driver_register(struct phonebook_driver *driver)
 
 void phonebook_driver_unregister(struct phonebook_driver *driver)
 {
+	DBG("driver %p name %s", driver, driver->name);
+
 	driver_list = g_slist_remove(driver_list, driver);
 }
 
 void phonebook_return(struct phonebook_context *context,
-					unsigned char *buf, size_t size)
+					unsigned char *buf, int size)
 {
 }
diff --git a/obexd/src/phonebook.h b/obexd/src/phonebook.h
index b786234..e154edf 100644
--- a/obexd/src/phonebook.h
+++ b/obexd/src/phonebook.h
@@ -37,4 +37,4 @@ extern int phonebook_driver_register(struct phonebook_driver *driver);
 extern void phonebook_driver_unregister(struct phonebook_driver *driver);
 
 extern void phonebook_return(struct phonebook_context *context,
-					unsigned char *buf, size_t size);
+					unsigned char *buf, int size);