diff --git a/cpp-subprocess/subprocess.hpp b/cpp-subprocess/subprocess.hpp
index cc3ed96..d2a76d3 100644
--- a/cpp-subprocess/subprocess.hpp
+++ b/cpp-subprocess/subprocess.hpp
@@ -1183,7 +1183,7 @@ class Child
     err_wr_pipe_(err_wr_pipe)
   {}
 
-  void execute_child();
+  [[noreturn]] void execute_child();
 
 private:
   // Lets call it parent even though