diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index 996d686..f2fa5b9 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -203,8 +203,8 @@
         Region requestedTransparentRegion;
         android_dataspace dataSpace;
 
-        uint32_t appId;
-        uint32_t type;
+        int32_t appId;
+        int32_t type;
 
         // If non-null, a Surface this Surface's Z-order is interpreted relative to.
         wp<Layer> zOrderRelativeOf;
@@ -285,7 +285,7 @@
     void deferTransactionUntil(const sp<IBinder>& barrierHandle, uint64_t frameNumber);
     void deferTransactionUntil(const sp<Layer>& barrierLayer, uint64_t frameNumber);
     bool setOverrideScalingMode(int32_t overrideScalingMode);
-    void setInfo(uint32_t type, uint32_t appId);
+    void setInfo(int32_t type, int32_t appId);
     bool reparentChildren(const sp<IBinder>& layer);
     void reparentChildrenForDrawing(const sp<Layer>& layer);
     bool reparent(const sp<IBinder>& newParentHandle);