diff --git a/src/osgViewer/GraphicsWindowIOS.mm b/src/osgViewer/GraphicsWindowIOS.mm
index b7d99c189..b706a2a21 100644
--- a/src/osgViewer/GraphicsWindowIOS.mm
+++ b/src/osgViewer/GraphicsWindowIOS.mm
@@ -264,9 +264,12 @@
             glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_DEPTH_COMPONENT16_OES, _backingWidth, _backingHeight);
         }else if(_win->getTraits()->depth == 24){
             glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_DEPTH_COMPONENT24_OES, _backingWidth, _backingHeight);
-        }else if(_win->getTraits()->depth == 32){
+        }
+#if defined(OSG_GLES2_AVAILABLE)
+        else if(_win->getTraits()->depth == 32){
             glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_DEPTH_COMPONENT32_OES, _backingWidth, _backingHeight);
         }
+#endif
         glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, GL_DEPTH_ATTACHMENT_OES, GL_RENDERBUFFER_OES, _depthRenderbuffer);
     }