diff --git a/compiler/rustc_builtin_macros/src/lib.rs b/compiler/rustc_builtin_macros/src/lib.rs
index 1017b23e567..a46a5502b24 100644
--- a/compiler/rustc_builtin_macros/src/lib.rs
+++ b/compiler/rustc_builtin_macros/src/lib.rs
@@ -11,6 +11,7 @@
 #![feature(or_patterns)]
 #![feature(proc_macro_internals)]
 #![feature(proc_macro_quote)]
+#![recursion_limit = "256"]
 
 extern crate proc_macro;
 
diff --git a/compiler/rustc_parse/src/lib.rs b/compiler/rustc_parse/src/lib.rs
index cea4de72df5..001b52b56fc 100644
--- a/compiler/rustc_parse/src/lib.rs
+++ b/compiler/rustc_parse/src/lib.rs
@@ -6,6 +6,7 @@
 #![feature(or_patterns)]
 #![feature(box_syntax)]
 #![feature(box_patterns)]
+#![recursion_limit = "256"]
 
 use rustc_ast as ast;
 use rustc_ast::token::{self, Nonterminal};
diff --git a/compiler/rustc_session/src/lib.rs b/compiler/rustc_session/src/lib.rs
index d002f597391..7eaeae504eb 100644
--- a/compiler/rustc_session/src/lib.rs
+++ b/compiler/rustc_session/src/lib.rs
@@ -1,6 +1,7 @@
 #![feature(crate_visibility_modifier)]
 #![feature(once_cell)]
 #![feature(or_patterns)]
+#![recursion_limit = "256"]
 
 #[macro_use]
 extern crate bitflags;