diff --git a/src/platform/common.hpp b/src/platform/common.hpp
index 87fb40d..02bed7d 100644
--- a/src/platform/common.hpp
+++ b/src/platform/common.hpp
@@ -261,7 +261,7 @@ T load_bytes(FILE* obj_file, off_t offset) {
 }
 
 class file_error : std::exception {
-    virtual const char* what() const noexcept {
+    virtual const char* what() const noexcept override {
         return "Unable to read file";
     }
 };