diff --git a/src/Display.h b/src/Display.h
index 7e8d7c1..4c2b712 100644
--- a/src/Display.h
+++ b/src/Display.h
@@ -54,7 +54,6 @@ class Display {
   }
 
 public:
-
   explicit Display(): leds(8 * 32, GPIO_NUM_13,NEO_GRB + NEO_KHZ800) {
     //
   }
@@ -86,11 +85,11 @@ public:
   }
 
   void setPixel(const int x, const int y, const Color &color) {
-    const auto index = mapPixel(x, y);
-    if (index >= 8 * 32) {
-      Serial.printf("[ERROR] No pixel at (%d, %d) = %d >= %d\n", x, y, index, 8 * 32);
+    if (x >= 32 || y >= 8) {
+      Serial.printf("[ERROR] No pixel at (%d, %d) >= %d\n", x, y, 8 * 32);
       return;
     }
+    const auto index = mapPixel(x, y);
 #if LEDS_ENABLED
     leds.setPixelColor(index, color.r, color.g, color.b);
 #endif
@@ -155,7 +154,8 @@ public:
   }
 
   template<int symbolHeight, int symbolWidth>
-  int printSymbol(const int x, const int y, const int index, const Color &color, const bool symbols[][symbolHeight][symbolWidth]) {
+  int printSymbol(const int x, const int y, const int index, const Color &color,
+                  const bool symbols[][symbolHeight][symbolWidth]) {
     for (int innerY = 0; innerY < symbolHeight; innerY++) {
       for (int innerX = 0; innerX < symbolWidth; innerX++) {
         if (symbols[index][innerY][innerX]) {