diff --git a/src/nouveau/mme/tests/mme_runner.cpp b/src/nouveau/mme/tests/mme_runner.cpp
index c144ab624a1..edd15ce6081 100644
--- a/src/nouveau/mme/tests/mme_runner.cpp
+++ b/src/nouveau/mme/tests/mme_runner.cpp
@@ -220,8 +220,9 @@ mme_fermi_sim_runner::run_macro(const std::vector<uint32_t>& macro,
       .data = data,
       .size = DATA_BO_SIZE,
    };
+   const uint32_t* p_params = params.size() ? &params[0] : NULL;
    mme_fermi_sim(insts.size(), &insts[0],
-                 params.size(), &params[0],
+                 params.size(), p_params,
                  1, &sim_mem);
 }
 
@@ -253,7 +254,8 @@ mme_tu104_sim_runner::run_macro(const std::vector<uint32_t>& macro,
       .data = data,
       .size = DATA_BO_SIZE,
    };
+   const uint32_t* p_params = params.size() ? &params[0] : NULL;
    mme_tu104_sim(insts.size(), &insts[0],
-                 params.size(), &params[0],
+                 params.size(), p_params,
                  1, &sim_mem);
 }