diff --git a/common/sampling.cpp b/common/sampling.cpp
index 78c4061f2b039..573c61d8c4e03 100644
--- a/common/sampling.cpp
+++ b/common/sampling.cpp
@@ -151,22 +151,16 @@ struct common_sampler * common_sampler_init(const struct llama_model * model, co
 
     lparams.no_perf = params.no_perf;
 
-    std::vector<const char *> c_trigger_words;
-    c_trigger_words.reserve(params.grammar_trigger_words.size());
+    std::vector<const char *> trigger_words;
+    trigger_words.reserve(params.grammar_trigger_words.size());
     for (const auto & str : params.grammar_trigger_words) {
-        c_trigger_words.push_back(str.c_str());
+        trigger_words.push_back(str.c_str());
     }
     auto * result = new common_sampler {
         /* .params = */ params,
-        /* .grmr   = */ llama_sampler_init_grammar(
-            vocab,
-            params.grammar.c_str(),
-            "root",
-            c_trigger_words.data(),
-            c_trigger_words.size(),
-            params.grammar_trigger_tokens.data(),
-            params.grammar_trigger_tokens.size()
-        ),
+        /* .grmr   = */ llama_sampler_init_grammar(vocab, params.grammar.c_str(), "root",
+                                                   trigger_words.data(), trigger_words.size(),
+                                                   params.grammar_trigger_tokens.data(), params.grammar_trigger_tokens.size()),
         /* .chain  = */ llama_sampler_chain_init(lparams),
         /* .prev   = */ ring_buffer<llama_token>(std::max(32, params.n_prev)),
         /* .cur    = */ {},
@@ -237,9 +231,7 @@ struct common_sampler * common_sampler_init(const struct llama_model * model, co
 
 void common_sampler_free(struct common_sampler * gsmpl) {
     if (gsmpl) {
-        if (gsmpl->grmr) {
-            llama_sampler_free(gsmpl->grmr);
-        }
+        llama_sampler_free(gsmpl->grmr);
 
         llama_sampler_free(gsmpl->chain);
 
@@ -258,9 +250,7 @@ void common_sampler_accept(struct common_sampler * gsmpl, llama_token token, boo
 }
 
 void common_sampler_reset(struct common_sampler * gsmpl) {
-    if (gsmpl->grmr) {
-        llama_sampler_reset(gsmpl->grmr);
-    }
+    llama_sampler_reset(gsmpl->grmr);
 
     llama_sampler_reset(gsmpl->chain);
 }
diff --git a/src/llama-sampling.cpp b/src/llama-sampling.cpp
index d5e759c2e69c3..0041a67e34a0f 100644
--- a/src/llama-sampling.cpp
+++ b/src/llama-sampling.cpp
@@ -1504,7 +1504,6 @@ struct llama_sampler * llama_sampler_init_grammar(
                             size_t num_trigger_words,
                const llama_token * trigger_tokens,
                             size_t num_trigger_tokens) {
-// struct llama_sampler * llama_sampler_init_grammar(const struct llama_vocab * vocab, const char * grammar_str, const char * grammar_root) {
     auto * ctx = new llama_sampler_grammar;
 
     if (grammar_str != nullptr && grammar_str[0] != '\0') {