Index: res/res_musiconhold.c
===================================================================
--- res/res_musiconhold.c	(revision 248223)
+++ res/res_musiconhold.c	(working copy)
@@ -560,7 +560,7 @@
 		ast_close_fds_above_n(STDERR_FILENO);
 
 		/* Child */
-		if (strcasecmp(class->dir, "nodir") && chdir(class->dir) < 0) {
+		if (strcasecmp(class->dir, "nodir") && strncasecmp(class->dir, "http://", 7) && chdir(class->dir) < 0) {
 			ast_log(LOG_WARNING, "chdir() failed: %s\n", strerror(errno));
 			_exit(1);
 		}