diff --git a/include/program_runner.hpp b/include/program_runner.hpp
index 563a73c..269facf 100644
--- a/include/program_runner.hpp
+++ b/include/program_runner.hpp
@@ -1,3 +1,6 @@
+#ifndef PROGRAM_RUNNER_H
+#define PROGRAM_RUNNER_H
+
 #include <cstdint>
 #include <iostream>
 #include <cstdlib>
@@ -131,4 +134,6 @@ class ProgramRunner {
 
 
 
-};
\ No newline at end of file
+};
+
+#endif