diff --git a/examples/command/command.cpp b/examples/command/command.cpp
index a9eb7a34c62..0e90e6eea48 100644
--- a/examples/command/command.cpp
+++ b/examples/command/command.cpp
@@ -693,7 +693,7 @@ int main(int argc, char ** argv) {
 
     struct whisper_context_params cparams = whisper_context_default_params();
     cparams.use_gpu = params.use_gpu;
-    cparams.fold_lowercase = params.model_fold_lc;
+    cparams.vocab_lc = params.model_fold_lc;
 
     struct whisper_context * ctx = whisper_init_from_file_with_params(params.model.c_str(), cparams);
 
diff --git a/examples/main/main.cpp b/examples/main/main.cpp
index 1170254bdee..48cf15cd86a 100644
--- a/examples/main/main.cpp
+++ b/examples/main/main.cpp
@@ -896,7 +896,7 @@ int main(int argc, char ** argv) {
 
     struct whisper_context_params cparams = whisper_context_default_params();
     cparams.use_gpu = params.use_gpu;
-    cparams.fold_lowercase = params.model_fold_lc;
+    cparams.vocab_lc = params.model_fold_lc;
 
     if (!params.dtw.empty()) {
         cparams.dtw_token_timestamps = true;
diff --git a/whisper.cpp b/whisper.cpp
index 8b111274c55..644452d7e16 100644
--- a/whisper.cpp
+++ b/whisper.cpp
@@ -1384,9 +1384,10 @@ static bool whisper_model_load(struct whisper_model_loader * loader, whisper_con
             }
 
             // If requested, output all text as lowercase.
-            if (wctx.params.fold_lowercase)
+            if (wctx.params.vocab_lc) {
                 std::transform(word.begin(), word.end(), word.begin(),
                     [](unsigned char c) { return std::tolower(c); });
+            }
 
             vocab.token_to_id[word] = i;
             vocab.id_to_token[i] = word;
diff --git a/whisper.h b/whisper.h
index 31a7f90cd8e..92b3677e6c3 100644
--- a/whisper.h
+++ b/whisper.h
@@ -116,7 +116,7 @@ extern "C" {
         int   gpu_device;  // CUDA device
 
         // Fold language tokens to lowercase
-        bool fold_lowercase;
+        bool vocab_lc;
 
         // [EXPERIMENTAL] Token-level timestamps with DTW
         bool dtw_token_timestamps;