diff --git a/glworker.h b/glworker.h
index 3201739..222cf6f 100644
--- a/glworker.h
+++ b/glworker.h
@@ -68,6 +68,8 @@
   CachedFramebuffer *PrepareAndCacheFramebuffer(
       const sp<GraphicBuffer> &framebuffer);
 
+  GLint PrepareAndCacheProgram(unsigned texture_count);
+
   EGLDisplay egl_display_;
   EGLContext egl_ctx_;