1 files changed, 2 insertions, 2 deletions
diff --git a/klm/lm/vocab.hh b/klm/lm/vocab.hh
index c3efcb4a..a25432f9 100644
--- a/klm/lm/vocab.hh
+++ b/klm/lm/vocab.hh
@@ -13,11 +13,11 @@
 #include <vector>
 
 namespace lm {
-class ProbBackoff;
+struct ProbBackoff;
 class EnumerateVocab;
 
 namespace ngram {
-class Config;
+struct Config;
 
 namespace detail {
 uint64_t HashForVocab(const char *str, std::size_t len);