diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index 17cff54..6518596 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -842,6 +842,10 @@
     return NO_ERROR;
 }
 
+status_t SurfaceComposerClient::getDisplayViewport(const sp<IBinder>& display, Rect* outViewport) {
+    return ComposerService::getComposerService()->getDisplayViewport(display, outViewport);
+}
+
 int SurfaceComposerClient::getActiveConfig(const sp<IBinder>& display) {
     return ComposerService::getComposerService()->getActiveConfig(display);
 }