diff -r ad7d09fef256 -r 8f14e4edae9c libpurple/xmlnode.c
--- a/libpurple/xmlnode.c	Mon Nov 24 10:43:38 2008 +0000
+++ b/libpurple/xmlnode.c	Mon Nov 24 10:59:08 2008 +0000
@@ -249,6 +249,7 @@
 	xmlnode *x;
 
 	g_return_val_if_fail(node != NULL, NULL);
+	g_return_val_if_fail(attr != NULL, NULL);
 
 	for(x = node->child; x; x = x->next) {
 		if(x->type == XMLNODE_TYPE_ATTRIB && !strcmp(attr, x->name)) {
@@ -265,6 +266,7 @@
 	xmlnode *x;
 
 	g_return_val_if_fail(node != NULL, NULL);
+	g_return_val_if_fail(attr != NULL, NULL);
 
 	for(x = node->child; x; x = x->next) {
 		if(x->type == XMLNODE_TYPE_ATTRIB &&