diff --git a/Dockerfile.aarch64 b/Dockerfile.aarch64
index 2cda3a1..7c26dde 100644
--- a/Dockerfile.aarch64
+++ b/Dockerfile.aarch64
@@ -45,8 +45,8 @@ COPY samba.sh /usr/bin/
 EXPOSE 137/udp 138/udp 139 445
 
 HEALTHCHECK --interval=60s --timeout=15s \
-             CMD smbclient -L '\\localhost\' -U 'guest%' -m SMB3
+             CMD smbclient -L '\\localhost\' -U '%' -m SMB3
 
 VOLUME ["/etc/samba"]
 
-ENTRYPOINT ["/sbin/tini", "--", "/usr/bin/samba.sh"]
\ No newline at end of file
+ENTRYPOINT ["/sbin/tini", "--", "/usr/bin/samba.sh"]