diff --git a/app.cc b/app.cc
index d35ca00..cf8df24 100644
--- a/app.cc
+++ b/app.cc
@@ -126,7 +126,7 @@ static void draw_cube()
     program->use();
     cube_array->bind();
 
-    glUniform4f(uniforms.ambient, 1.0, 1.0, 1.0, 1.0);
+    glUniform4f(uniforms.ambient, 0.2, 0.2, 0.2, 0.2);
     glUniform4f(uniforms.specular, 1.0, 1.0, 1.0, 1.0);
     glUniform1f(uniforms.shininess, 150.0);
     glUniform1i(uniforms.tex, 0);
diff --git a/cube.f.glsl b/cube.f.glsl
index caa9a56..eefeafb 100644
--- a/cube.f.glsl
+++ b/cube.f.glsl
@@ -15,7 +15,7 @@ void main(void)
 
     lightDir = normalize(vec3(-0.1, 0, -0.9));
     vec4 texture_color = texture2D(tex, tex_coord_i);
-    color = vec4(0.2, 0.2, 0.2, texture_color.a) * ambient;  /* ambient light */
+    color = texture_color * ambient;  /* ambient light */
     n = normalize(normal_i);
 
     NdotL = dot(n, -lightDir);