diff --git a/src/main.cc b/src/main.cc
index 45cb298..cadf204 100644
--- a/src/main.cc
+++ b/src/main.cc
@@ -167,6 +167,7 @@ int main() {
   glViewport(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT);
 
   glEnable(GL_DEPTH_TEST);
+  glEnable(GL_CULL_FACE);
 
   std::vector<Vertex> vertices = {
     // positions                           // normals                      // texture coords