diff --git a/Marlin/Conditionals_post.h b/Marlin/Conditionals_post.h
index 8509a4c8b..34ab31db4 100644
--- a/Marlin/Conditionals_post.h
+++ b/Marlin/Conditionals_post.h
@@ -1077,9 +1077,9 @@
   #endif
 
   /**
-   * VIKI2, miniVIKI, and AZSMZ_12864 require DOGLCD_SCK and DOGLCD_MOSI to be defined.
+   * VIKI2, miniVIKI, AZSMZ_12864, and MKS_12864OLED_SSD1306 require DOGLCD_SCK and DOGLCD_MOSI to be defined.
    */
-  #if ENABLED(VIKI2) || ENABLED(miniVIKI) || ENABLED(AZSMZ_12864)
+  #if ENABLED(VIKI2) || ENABLED(miniVIKI) || ENABLED(AZSMZ_12864) || ENABLED(MKS_12864OLED_SSD1306)
     #ifndef DOGLCD_SCK
       #define DOGLCD_SCK  SCK_PIN
     #endif