diff --git a/src/nouveau/compiler/nak_nir.c b/src/nouveau/compiler/nak_nir.c
index 6ff52683db3..88aed928b54 100644
--- a/src/nouveau/compiler/nak_nir.c
+++ b/src/nouveau/compiler/nak_nir.c
@@ -164,6 +164,7 @@ optimize_nir(nir_shader *nir, const struct nak_compiler *nak, bool allow_copies)
          OPT(nir, nir_opt_dce);
       }
       OPT(nir, nir_opt_if, nir_opt_if_optimize_phi_true_false);
+      OPT(nir, nir_opt_phi_to_bool);
       if (nir->options->max_unroll_iterations != 0) {
          OPT(nir, nir_opt_loop_unroll);
       }