diff --git a/.gitignore b/.gitignore
index 6ea937b..6a5a4a4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,4 @@ disk.img
 mnt
 
 sysroot/lib/rustlib/riscv64
+library/alloc
diff --git a/library/.gitignore b/library/.gitignore
index e958848..18f713d 100644
--- a/library/.gitignore
+++ b/library/.gitignore
@@ -1,6 +1,5 @@
 Cargo.lock
 Cargo.toml
-alloc
 alloctests
 backtrace
 compiler-builtins
diff --git a/library/std/patches/sys/alloc/mod.sed b/library/std/patches/sys/alloc/mod.sed
new file mode 100644
index 0000000..22d2e31
--- /dev/null
+++ b/library/std/patches/sys/alloc/mod.sed
@@ -0,0 +1,3 @@
+109a \    target_os = "survos" => { \
+        mod survos; \
+    }