diff --git a/includes/std/hash.pat b/includes/std/hash.pat
index ebd3756..2612c51 100644
--- a/includes/std/hash.pat
+++ b/includes/std/hash.pat
@@ -1,3 +1,5 @@
+#pragma once
+
 namespace std::hash {
 
     fn crc32(u128 address, u64 size, u32 init, u32 poly) {
diff --git a/includes/std/http.pat b/includes/std/http.pat
index bd53c2e..fdeb323 100644
--- a/includes/std/http.pat
+++ b/includes/std/http.pat
@@ -1,3 +1,5 @@
+#pragma once
+
 namespace std::http {
 
     fn get(str url) {