diff --git a/src/compiler/nir/nir_clone.c b/src/compiler/nir/nir_clone.c
index 682a1a274a7..69807e2e7a5 100644
--- a/src/compiler/nir/nir_clone.c
+++ b/src/compiler/nir/nir_clone.c
@@ -706,8 +706,10 @@ clone_function(clone_state *state, const nir_function *fxn, nir_shader *ns)
    add_remap(state, nfxn, fxn);
 
    nfxn->num_params = fxn->num_params;
-   nfxn->params = ralloc_array(state->ns, nir_parameter, fxn->num_params);
-   memcpy(nfxn->params, fxn->params, sizeof(nir_parameter) * fxn->num_params);
+   if (fxn->num_params) {
+           nfxn->params = ralloc_array(state->ns, nir_parameter, fxn->num_params);
+           memcpy(nfxn->params, fxn->params, sizeof(nir_parameter) * fxn->num_params);
+   }
    nfxn->is_entrypoint = fxn->is_entrypoint;
 
    /* At first glance, it looks like we should clone the function_impl here.