diff --git a/include/gui/SurfaceControl.h b/include/gui/SurfaceControl.h
index f70888ddf..9268e7dc8 100644
--- a/include/gui/SurfaceControl.h
+++ b/include/gui/SurfaceControl.h
@@ -57,7 +57,7 @@ public:
     
     status_t    setLayerStack(int32_t layerStack);
     status_t    setLayer(int32_t layer);
-    status_t    setPosition(int32_t x, int32_t y);
+    status_t    setPosition(float x, float y);
     status_t    setSize(uint32_t w, uint32_t h);
     status_t    hide();
     status_t    show();
diff --git a/libs/gui/SurfaceControl.cpp b/libs/gui/SurfaceControl.cpp
index ef52269b0..e621b22a0 100644
--- a/libs/gui/SurfaceControl.cpp
+++ b/libs/gui/SurfaceControl.cpp
@@ -106,7 +106,7 @@ status_t SurfaceControl::setLayer(int32_t layer) {
     const sp<SurfaceComposerClient>& client(mClient);
     return client->setLayer(mSurface, layer);
 }
-status_t SurfaceControl::setPosition(int32_t x, int32_t y) {
+status_t SurfaceControl::setPosition(float x, float y) {
     status_t err = validate();
     if (err < 0) return err;
     const sp<SurfaceComposerClient>& client(mClient);