diff --git a/modules/lightmapper_rd/lightmapper_rd.cpp b/modules/lightmapper_rd/lightmapper_rd.cpp
index b6f5d6ce57eb..835fb3e59dc7 100644
--- a/modules/lightmapper_rd/lightmapper_rd.cpp
+++ b/modules/lightmapper_rd/lightmapper_rd.cpp
@@ -1908,7 +1908,7 @@ LightmapperRD::BakeError LightmapperRD::bake(BakeQuality p_quality, bool p_use_d
 				seams_push_constant.slice = uint32_t(i * subslices + k);
 				seams_push_constant.debug = debug;
 
-				RD::DrawListID draw_list = rd->draw_list_begin(framebuffers[i], RD::INITIAL_ACTION_LOAD, RD::FINAL_ACTION_STORE, RD::INITIAL_ACTION_CLEAR, RD::FINAL_ACTION_DISCARD, clear_colors);
+				RD::DrawListID draw_list = rd->draw_list_begin(framebuffers[i * subslices + k], RD::INITIAL_ACTION_LOAD, RD::FINAL_ACTION_STORE, RD::INITIAL_ACTION_CLEAR, RD::FINAL_ACTION_DISCARD, clear_colors);
 
 				rd->draw_list_bind_uniform_set(draw_list, raster_base_uniform, 0);
 				rd->draw_list_bind_uniform_set(draw_list, blendseams_raster_uniform, 1);