diff --git a/src/microsoft/compiler/nir_to_dxil.c b/src/microsoft/compiler/nir_to_dxil.c
index bdca79bf9ec..ad3f962d4d9 100644
--- a/src/microsoft/compiler/nir_to_dxil.c
+++ b/src/microsoft/compiler/nir_to_dxil.c
@@ -4302,7 +4302,7 @@ emit_intrinsic(struct ntd_context *ctx, nir_intrinsic_instr *intr)
    case nir_intrinsic_load_workgroup_size:
    default:
       NIR_INSTR_UNSUPPORTED(&intr->instr);
-      assert("Unimplemented intrinsic instruction");
+      unreachable("Unimplemented intrinsic instruction");
       return false;
    }
 }