diff --git a/libraries/eosiolib/core/eosio/datastream.hpp b/libraries/eosiolib/core/eosio/datastream.hpp
index 1f4aa75b96..2f5bd88251 100644
--- a/libraries/eosiolib/core/eosio/datastream.hpp
+++ b/libraries/eosiolib/core/eosio/datastream.hpp
@@ -16,7 +16,7 @@
 #include <optional>
 #include <variant>
 
-#include <string.h>
+#include <cstring>
 
 #include <boost/fusion/algorithm/iteration/for_each.hpp>
 #include <boost/fusion/include/for_each.hpp>
diff --git a/tools/antler-run/file-utils.hpp b/tools/antler-run/file-utils.hpp
index ea27952ec2..b54f8924c9 100644
--- a/tools/antler-run/file-utils.hpp
+++ b/tools/antler-run/file-utils.hpp
@@ -20,7 +20,7 @@ enum class file_type {
     wasm
 };
 
-file_type get_file_type(const char* path) {
+inline file_type get_file_type(const char* path) {
     std::fstream file;
     file.open(path, std::fstream::in | std::fstream::binary);
     assert(file.is_open());
@@ -55,7 +55,7 @@ file_type get_file_type(const char* path) {
     return file_type::uninitialized;
 }
 
-std::string file_type_str(file_type t) {
+inline std::string file_type_str(file_type t) {
     switch (t) {
         case file_type::non_elf_other:
         return "non elf";