diff --git a/Marlin/src/sd/cardreader.h b/Marlin/src/sd/cardreader.h
index 10beea5ec4..14529fbff1 100644
--- a/Marlin/src/sd/cardreader.h
+++ b/Marlin/src/sd/cardreader.h
@@ -174,7 +174,7 @@ public:
   #if ENABLED(AUTO_REPORT_SD_STATUS)
     static void auto_report_sd_status();
     static inline void set_auto_report_interval(uint8_t v) {
-      TERN_(HAS_MULTI_SERIAL, auto_report_port = serialHook.portMask);
+      TERN_(HAS_MULTI_SERIAL, auto_report_port = multiSerial.portMask);
       NOMORE(v, 60);
       auto_report_sd_interval = v;
       next_sd_report_ms = millis() + 1000UL * v;