diff --git a/43-normal-maps/src/shadows.cpp b/43-normal-maps/src/shadows.cpp
index c6cd315..c2a913c 100644
--- a/43-normal-maps/src/shadows.cpp
+++ b/43-normal-maps/src/shadows.cpp
@@ -38,6 +38,7 @@ void Shadows::begin() {
   glBindFramebuffer(GL_FRAMEBUFFER, target_fb);
   glEnable(GL_DEPTH_TEST);
   glClear(GL_DEPTH_BUFFER_BIT);
+  glCullFace(GL_FRONT);
 }
 
 void Shadows::commit() {
@@ -45,6 +46,7 @@ void Shadows::commit() {
   glDisable(GL_DEPTH_TEST);
   glViewport(0, 0, SCR_WIDTH, SCR_HEIGHT);
   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+  glCullFace(GL_BACK);
 }
 
 void Shadows::use() {