diff --git a/src/runtime/document.c b/src/runtime/document.c
index b37f1197..091bda23 100644
--- a/src/runtime/document.c
+++ b/src/runtime/document.c
@@ -50,10 +50,6 @@ void ts_document_set_input_string(TSDocument *self, const char *text) {
   ts_document_set_input(self, ts_string_input_make(text));
 }
 
-const char *ts_document_symbol_name(TSDocument *document, TSSymbol symbol) {
-  return document->parser.language->symbol_names[symbol];
-}
-
 void ts_document_edit(TSDocument *self, TSInputEdit edit) {
   if (!self->tree)
     return;
diff --git a/src/runtime/language.c b/src/runtime/language.c
new file mode 100644
index 00000000..71749867
--- /dev/null
+++ b/src/runtime/language.c
@@ -0,0 +1,5 @@
+#include "runtime/parser.h"
+
+const char *ts_language_symbol_name(TSLanguage *language, TSSymbol symbol) {
+  return language->symbol_names[symbol];
+}