diff --git a/PEzor.hpp b/PEzor.hpp
index 48bc850..da4103b 100644
--- a/PEzor.hpp
+++ b/PEzor.hpp
@@ -2,7 +2,9 @@
 #define _HELLO_HPP_
 
 #include <windows.h>
+#ifdef _DEBUG_
 #include <iostream>
+#endif
 
 #include "inject.hpp"
 #include "shellcode.hpp"
diff --git a/inject.hpp b/inject.hpp
index bcd1f95..4d29861 100644
--- a/inject.hpp
+++ b/inject.hpp
@@ -2,7 +2,9 @@
 #define _INJECT_HPP_
 
 #include <windows.h>
+#ifdef _DEBUG_
 #include <iostream>
+#endif
 #include <unistd.h>
 #include "syscalls.hpp"
 
diff --git a/syscalls.hpp b/syscalls.hpp
index 1c7aac3..4c3b75b 100644
--- a/syscalls.hpp
+++ b/syscalls.hpp
@@ -1,7 +1,9 @@
 #ifndef _SYSCALLS_HPP_
 #define _SYSCALLS_HPP_
 #include <windows.h>
+#ifdef _DEBUG_
 #include <iostream>
+#endif
 #include <winternl.h>
 
 // Version