diff --git a/common/common.cpp b/common/common.cpp
index adb92ec79..919182862 100644
--- a/common/common.cpp
+++ b/common/common.cpp
@@ -154,7 +154,7 @@ bool gpt_params_parse(int argc, char ** argv, gpt_params & params) {
     return result;
 }
 
-bool gpt_params_find_arg(int argc, char ** argv, gpt_params & params, int & i, bool & invalid_param) {
+static bool gpt_params_find_arg(int argc, char ** argv, gpt_params & params, int & i, bool & invalid_param) {
     std::string arg = argv[i];
     llama_sampling_params& sparams = params.sparams;