diff --git a/services/surfaceflinger/DisplayDevice.cpp b/services/surfaceflinger/DisplayDevice.cpp
index 7df9b76..a1ccaad 100644
--- a/services/surfaceflinger/DisplayDevice.cpp
+++ b/services/surfaceflinger/DisplayDevice.cpp
@@ -156,7 +156,8 @@
 }
 
 void DisplayDevice::setDisplaySize(int width, int height) {
-    mCompositionDisplay->setDisplaySpaceSize(ui::Size(width, height));
+    LOG_FATAL_IF(!isVirtual(), "Changing the display size is supported only for virtual displays.");
+    mCompositionDisplay->setDisplaySize(ui::Size(width, height));
 }
 
 void DisplayDevice::setProjection(ui::Rotation orientation, Rect layerStackSpaceRect,