diff --git a/core/src/processing/opengl/PSurfaceJOGL.java b/core/src/processing/opengl/PSurfaceJOGL.java
index b314ad451..0649e389e 100644
--- a/core/src/processing/opengl/PSurfaceJOGL.java
+++ b/core/src/processing/opengl/PSurfaceJOGL.java
@@ -390,6 +390,8 @@ public class PSurfaceJOGL implements PSurface {
       sketchHeight = screenRect.height;
     }
 
+    sketch.setSize(sketchWidth, sketchHeight);
+
     float[] reqSurfacePixelScale;
     if (graphics.is2X()) {
        // Retina