Modified: MacRuby/trunk/vm.cpp (3374 => 3375)

--- MacRuby/trunk/vm.cpp	2010-01-30 01:33:30 UTC (rev 3374)
+++ MacRuby/trunk/vm.cpp	2010-01-30 04:33:25 UTC (rev 3375)
@@ -3719,7 +3719,7 @@
 
 	if (GET_CORE()->symbolize_call_address(callstack[i], NULL,
 		    path, sizeof path, &ln, name, sizeof name)
-		&& name[0] != '\0') {
+		&& name[0] != '\0' && path[0] != '\0') {
 	    char entry[PATH_MAX];
 	    if (ln == 0) {
 		snprintf(entry, sizeof entry, "%s:in `%s'",