diff --git a/src/llama-chat.h b/src/llama-chat.h
index 2f6a0e3e2..16af32582 100644
--- a/src/llama-chat.h
+++ b/src/llama-chat.h
@@ -4,7 +4,7 @@
 #include <vector>
 #include <cstdint>
 
-enum llm_chat_template {
+enum class llm_chat_template {
     LLM_CHAT_TEMPLATE_CHATML,
     LLM_CHAT_TEMPLATE_LLAMA_2,
     LLM_CHAT_TEMPLATE_LLAMA_2_SYS,