diff --git a/shaders/manif.fs b/shaders/manif.fs
index 03829a0..a797592 100644
--- a/shaders/manif.fs
+++ b/shaders/manif.fs
@@ -8,6 +8,7 @@ out vec4 fragColor;
 uniform vec4 couleur;
 uniform vec4 lumpos;
 uniform mat4 view;
+uniform vec4 lumcolor;
 
 void main() {
   const vec3 vue = vec3(0, 0, -1);
@@ -17,5 +18,5 @@ void main() {
   vec3 reflet = (transpose(inverse(view)) * vec4(reflect(torche, vec_normal), 0)).xyz;
   float intensite_specularite = pow(clamp(dot(reflet, -vue), 0, 1), 10);
 
-  fragColor = intensite_specularite * vec4(1.0f, 0.0f, 0.0f, 1.0f) + 0.1 * soleil_color + 0.9 * intensite_lumineuse * couleur;
+  fragColor = intensite_specularite * lumcolor + 0.1 * soleil_color + 0.9 * intensite_lumineuse * couleur;
 }
diff --git a/src/manif.c b/src/manif.c
index 2e23b23..b980898 100644
--- a/src/manif.c
+++ b/src/manif.c
@@ -52,8 +52,10 @@ static void draw(void) {
   GLint couleur_gpu = glGetUniformLocation(_pId, "couleur");
   static double deplacement = 0;
 
-  const GLfloat lumpos[] = {1, (GLfloat)(2 + 2 * sin(deplacement)), 1, 1};
+  const GLfloat lumpos[] = {1, (GLfloat)(2 + 2 * sin(deplacement)), 1, 1},
+                lumcolor[] = {1, 0, 0, 1};
   glUniform4fv(glGetUniformLocation(_pId, "lumpos"), 1, lumpos);
+  glUniform4fv(glGetUniformLocation(_pId, "lumcolor"), 1, lumcolor);
 
   bindAndLoadf(matrix_proj);
   GLfloat ratio = (GLfloat)_dims[0] / (GLfloat)_dims[1];