diff --git a/src/llama-sampling.cpp b/src/llama-sampling.cpp
index d7a18e70e..8349b3162 100644
--- a/src/llama-sampling.cpp
+++ b/src/llama-sampling.cpp
@@ -1069,9 +1069,8 @@ struct llama_sampler_xtc {
 
     const uint32_t seed;
     uint32_t       seed_cur;
-    float          chance;
 
-    std::mt19937 rng;
+    std::mt19937   rng;
 };
 
 static const char * llama_sampler_xtc_name(const struct llama_sampler * /*smpl*/) {
@@ -1079,7 +1078,7 @@ static const char * llama_sampler_xtc_name(const struct llama_sampler * /*smpl*/
 }
 
 static void llama_sample_xtc_apply(struct llama_sampler * smpl, llama_token_data_array * cur_p) {
-    const auto * ctx = (llama_sampler_xtc *) smpl->ctx;
+    auto * ctx = (llama_sampler_xtc *) smpl->ctx;
 
     if (ctx->probability <= 0.0f
         || ctx->threshold <= 0.0f
@@ -1089,8 +1088,10 @@ static void llama_sample_xtc_apply(struct llama_sampler * smpl, llama_token_data
         || cur_p->size <= 2) {
         return;
     }
-    // chance is calculated on init and on each reset
-    if (ctx->chance > ctx->probability) return;
+
+    std::uniform_real_distribution<float> distance(0.0f, 1.0f);
+    float chance = distance(ctx->rng);
+    if (chance > ctx->probability) return;
 
     // in case it's not sorted/recalculated yet
     llama_sampler_softmax_impl(cur_p);
@@ -1142,9 +1143,6 @@ static void llama_sampler_xtc_reset(struct llama_sampler * smpl) {
     auto * ctx = (llama_sampler_xtc *) smpl->ctx;
     ctx->seed_cur = get_rng_seed(ctx->seed);
     ctx->rng.seed(ctx->seed_cur);
-
-    std::uniform_real_distribution<> distance(0.0, 1.0);
-    ctx->chance = distance(ctx->rng);
 }
 
 static struct llama_sampler_i llama_sampler_xtc_i = {
@@ -1158,9 +1156,6 @@ static struct llama_sampler_i llama_sampler_xtc_i = {
 
 struct llama_sampler * llama_sampler_init_xtc(float p, float t, float t_max, size_t min_keep, uint32_t seed) {
     auto seed_cur = get_rng_seed(seed);
-    std::uniform_real_distribution<> distance(0.0, 1.0);
-    auto rng = std::mt19937(seed_cur);
-    float chance = distance(rng);
     return new llama_sampler {
         /* .iface = */ &llama_sampler_xtc_i,
         /* .ctx   = */ new llama_sampler_xtc {
@@ -1170,8 +1165,7 @@ struct llama_sampler * llama_sampler_init_xtc(float p, float t, float t_max, siz
             /* .min_keep      = */ min_keep,
             /* .seed          = */ seed,
             /* .seed_cur      = */ seed_cur,
-            /* .chance        = */ chance,
-            /* .rng           = */ rng,
+            /* .rng           = */ std::mt19937(seed_cur),
         },
     };
 }