diff --git a/resources/shaders/overhang.shader b/resources/shaders/overhang.shader
index 4ae2821c7d..99cbdf913d 100644
--- a/resources/shaders/overhang.shader
+++ b/resources/shaders/overhang.shader
@@ -74,6 +74,7 @@ u_viewProjectionMatrix = view_projection_matrix
 u_normalMatrix = normal_matrix
 u_viewPosition = view_position
 u_lightPosition = light_0_position
+u_diffuseColor = diffuse_color
 
 [attributes]
 a_vertex = vertex