diff --git a/modules/juce_opengl/native/juce_OpenGL_ios.h b/modules/juce_opengl/native/juce_OpenGL_ios.h
index ee8e5ac46f..3ffac72ce9 100644
--- a/modules/juce_opengl/native/juce_OpenGL_ios.h
+++ b/modules/juce_opengl/native/juce_OpenGL_ios.h
@@ -154,9 +154,13 @@ public:
 
             if (openGLversion >= openGL3_2)
             {
-                glBlitFramebuffer (0, 0, lastBounds.getWidth(), lastBounds.getHeight(),
-                                   0, 0, lastBounds.getWidth(), lastBounds.getHeight(),
-                                   GL_COLOR_BUFFER_BIT, GL_NEAREST);
+                auto w = roundToInt (lastBounds.getWidth()  * glLayer.contentsScale);
+                auto h = roundToInt (lastBounds.getHeight() * glLayer.contentsScale);
+
+                glBlitFramebuffer (0, 0, w, h,
+                                   0, 0, w, h,
+                                   GL_COLOR_BUFFER_BIT,
+                                   GL_NEAREST);
             }
             else
             {