diff --git a/src/rendering/twn_lines.c b/src/rendering/twn_lines.c
index d37e33c..e9f3d2a 100644
--- a/src/rendering/twn_lines.c
+++ b/src/rendering/twn_lines.c
@@ -68,7 +68,7 @@ void draw_line_3d(Vec3 start,
     struct LineVertex const v1 = { .position = finish, .color = color };
 
     /* 3d case, unordered depth based draw */
-    struct LineBatchItemKey const key = { .color = color, .thickness = (uint8_t)(floorf(thickness)) };
+    struct LineBatchItemKey const key = { .thickness = (uint8_t)(floorf(thickness)) };
     struct LineBatchItem *batch_p = hmgetp_null(ctx.line_batches, key);
     if (!batch_p) {
         hmput(ctx.line_batches, key, ((struct LinePrimitive){.thickness = thickness, .color = color}));