diff --git a/keyboards/ploopyco/trackball/config.h b/keyboards/ploopyco/trackball/config.h
index ccbb89d5f..7b0f3faa0 100644
--- a/keyboards/ploopyco/trackball/config.h
+++ b/keyboards/ploopyco/trackball/config.h
@@ -60,3 +60,4 @@
 
 /* PMW3360 Settings */
 #define PMW3360_CS_PIN             B0
+#define POINTING_DEVICE_INVERT_Y