diff --git a/demos/ray.d b/demos/ray.d
index c949dbd4..1849d3f1 100644
--- a/demos/ray.d
+++ b/demos/ray.d
@@ -113,7 +113,7 @@ void main(string[] args) {
     n = (args.length==3 ? args[2].atoi() : 512), ss = 4;
   auto light = Vec(-1, -3, 2).unitise();
   auto s=create(level, Vec(0, -1, 0), 1);
-  printf("P5\n%d %d\n255", n,n);
+  printf("P5\n%d %d\n255\n", n,n);
   for (int y=n-1; y>=0; --y)
     for (int x=0; x<n; ++x) {
       double g=0;