diff --git a/Marlin/src/pins/mega/pins_WANHAO_ONEPLUS.h b/Marlin/src/pins/mega/pins_WANHAO_ONEPLUS.h
index 0abea23a45..715e823393 100644
--- a/Marlin/src/pins/mega/pins_WANHAO_ONEPLUS.h
+++ b/Marlin/src/pins/mega/pins_WANHAO_ONEPLUS.h
@@ -82,7 +82,7 @@
 //
 // SD Card
 //
-#define SD_DETECT_PIN                         -1
+#define SD_DETECT_PIN                         83
 #define SDSS                                  53
 
 //