diff --git a/resources/check_endianness.cpp b/resources/check_endianness.cpp
index af81c6a..da15faa 100644
--- a/resources/check_endianness.cpp
+++ b/resources/check_endianness.cpp
@@ -21,6 +21,8 @@ int main() {
     *testInteger = 0x04030201;
     auto data = reinterpret_cast<std::uint8_t*>(testInteger);
 
+    std::cout << "#pragma once" << std::endl;
+
     if (
         *data  ==  0x01 &&
         *(data+1)==0x02 &&