diff --git a/src/intel/compiler/brw_fs.cpp b/src/intel/compiler/brw_fs.cpp
index 340fcd6203f..83e0f2c72aa 100644
--- a/src/intel/compiler/brw_fs.cpp
+++ b/src/intel/compiler/brw_fs.cpp
@@ -9552,6 +9552,7 @@ brw_nir_populate_wm_prog_data(const nir_shader *shader,
 
    prog_data->per_coarse_pixel_dispatch =
       key->coarse_pixel &&
+      !prog_data->uses_omask &&
       !prog_data->persample_dispatch &&
       !prog_data->uses_sample_mask &&
       (prog_data->computed_depth_mode == BRW_PSCDEPTH_OFF) &&