diff --git a/include/bits/soi-dbg.hpp b/include/bits/soi-dbg.hpp
index f59fb0f..390a1a6 100644
--- a/include/bits/soi-dbg.hpp
+++ b/include/bits/soi-dbg.hpp
@@ -174,7 +174,7 @@ T &&dbg_print(T &&value, std::string const& type, char const *file, int line,
 
   std::cerr << ANSI_DEBUG << "[" << file << ":" << line << " (" << function_name
             << ")] " << ANSI_RESET << ANSI_EXPRESSION
-            << replace_all(expression, "int64_t", "int")
+            << replace_all(c, "int64_t", "int")
             << ANSI_RESET << " = " << ANSI_VALUE << value_buffer.rdbuf()
             << ANSI_RESET << " (" << ANSI_TYPE << type << ANSI_RESET << ")"
             << '\n';