diff --git a/11/2d-noise.frag b/11/2d-noise.frag
index 74be372..9ad6708 100644
--- a/11/2d-noise.frag
+++ b/11/2d-noise.frag
@@ -31,7 +31,7 @@ float noise (in vec2 st) {
     vec2 u = f*f*(3.0-2.0*f);
     // u = smoothstep(0.,1.,f);
 
-    // Mix 4 coorners porcentages
+    // Mix 4 coorners percentages
     return mix(a, b, u.x) +
             (c - a)* u.y * (1.0 - u.x) +
             (d - b) * u.x * u.y;