diff --git a/src/display/Display.h b/src/display/Display.h
index 5ed6acd..e4ce958 100644
--- a/src/display/Display.h
+++ b/src/display/Display.h
@@ -244,7 +244,7 @@ public:
   }
 
   void set(uint8_t x, uint8_t y, Color color) {
-    if (x >= width || y >= height) {
+    if (x < 0 || y < 0 || x >= width || y >= height) {
       return;
     }
     if ((y % 2) != 0) {