diff --git a/src/rendering/twn_gl_15_rendering.c b/src/rendering/twn_gl_15_rendering.c
index badefcf..ccc8626 100644
--- a/src/rendering/twn_gl_15_rendering.c
+++ b/src/rendering/twn_gl_15_rendering.c
@@ -418,9 +418,9 @@ bool push_quad_payload_to_vertex_buffer_builder(struct QuadBatch batch,
 
             /* equal for all (flat shaded) */
             .c0 = m_color_packed_from(color),
-            .c1 = m_color_packed_from(color),
+            // .c1 = m_color_packed_from(color),
             .c2 = m_color_packed_from(color),
-            .c3 = m_color_packed_from(color),
+            // .c3 = m_color_packed_from(color),
         };
 
         return push_to_vertex_buffer_builder(builder, &buffer_element, sizeof buffer_element);
@@ -449,9 +449,9 @@ bool push_quad_payload_to_vertex_buffer_builder(struct QuadBatch batch,
 
             /* equal for all (flat shaded) */
             .c0 = m_color_packed_from(color),
-            .c1 = m_color_packed_from(color),
+            // .c1 = m_color_packed_from(color),
             .c2 = m_color_packed_from(color),
-            .c3 = m_color_packed_from(color),
+            // .c3 = m_color_packed_from(color),
         };
 
         return push_to_vertex_buffer_builder(builder, &buffer_element, sizeof buffer_element);