diff --git a/stratosphere/ams_mitm/source/dns_mitm/dnsmitm_host_redirection.cpp b/stratosphere/ams_mitm/source/dns_mitm/dnsmitm_host_redirection.cpp
index c589dfcad..eb4de2156 100644
--- a/stratosphere/ams_mitm/source/dns_mitm/dnsmitm_host_redirection.cpp
+++ b/stratosphere/ams_mitm/source/dns_mitm/dnsmitm_host_redirection.cpp
@@ -36,7 +36,7 @@ namespace ams::mitm::socket::resolver {
                 if (!*string) {
                     if (!*pattern) return 1;
                     if ('*' == *pattern) return 1;
-                    if (!*s) return 0;
+                    if (!s || !*s) return 0;
                     string = s++;
                     pattern = w;
                     continue;