diff --git a/libs/input/SpriteIcon.cpp b/libs/input/SpriteIcon.cpp
index 59e36e4..2f8d473 100644
--- a/libs/input/SpriteIcon.cpp
+++ b/libs/input/SpriteIcon.cpp
@@ -25,6 +25,8 @@
 namespace android {
 
 bool SpriteIcon::draw(sp<Surface> surface) const {
+    LOG_ALWAYS_FATAL_IF(!isValid(), "Cannot draw SpriteIcon: not valid");
+
     ANativeWindow_Buffer outBuffer;
     status_t status = surface->lock(&outBuffer, NULL);
     if (status) {