diff --git a/support/include/utils/error.hpp b/support/include/utils/error.hpp
index 13ff7693..87d94714 100644
--- a/support/include/utils/error.hpp
+++ b/support/include/utils/error.hpp
@@ -48,7 +48,7 @@ protected:
 struct iostream_exception_handler final : i_exception_handler {
   void handle_error(std::string_view function_name,
                     std::string_view msg) const override {
-    std::cerr << function_name << '|' << msg;
+    std::cerr << function_name << '|' << msg << std::endl;
   }
 
   void handle_exception(std::string_view function_name) const override {