diff --git a/server.js b/server.js
index 51e3795..6eecb4a 100644
--- a/server.js
+++ b/server.js
@@ -77,7 +77,8 @@ io.on('connection', (client) => {
                 break
             case 'setPixel':
                 if (color == undefined) color = [255, 255, 255]
-                sensehat.led.setPixel(Number(x), Number(y), color)
+                x = Number(x), y = Number(y)
+                sensehat.led.setPixel(x, y, color)
                 io.emit('action', { action: 'setPixel', x, y, color })
                 break
             // case 'getPixel':