diff --git a/services/surfaceflinger/DisplayDevice.cpp b/services/surfaceflinger/DisplayDevice.cpp
index e5ecf07..d7bbf5c 100644
--- a/services/surfaceflinger/DisplayDevice.cpp
+++ b/services/surfaceflinger/DisplayDevice.cpp
@@ -194,6 +194,8 @@
         eglSetSwapRectangleANDROID(dpy, surface,
                 b.left, b.top, b.width(), b.height());
     }
+#else
+    (void) dirty; // Eliminate unused parameter warning
 #endif
 
     mPageFlipCount++;