diff --git a/builtin/README.md b/builtin/README.md
index 6da9e82..a79c87e 100644
--- a/builtin/README.md
+++ b/builtin/README.md
@@ -1,4 +1,4 @@
 The following function signatures need to be implemented by each backend:
 
-`\_printf(msg: string)`
-`\_exit(code: int)`
+`_printf(msg: string)`
+`_exit(code: int)`