diff --git a/src/lifetime.rs b/src/lifetime.rs
index e2c5b4f..40c1e20 100644
--- a/src/lifetime.rs
+++ b/src/lifetime.rs
@@ -19,7 +19,6 @@
 ///
 /// - Must start with an apostrophe.
 /// - Must not consist of just an apostrophe: `'`.
-/// - Must not consist of apostrophe + underscore: `'_`.
 /// - Character after the apostrophe must be `_` or a Unicode code point with
 ///   the XID_Start property.
 /// - All following characters must be Unicode code points with the XID_Continue
@@ -50,10 +49,6 @@
             panic!("lifetime name must not be empty");
         }
 
-        if s == "'_" {
-            panic!("\"'_\" is not a valid lifetime name");
-        }
-
         fn xid_ok(s: &str) -> bool {
             let mut chars = s.chars();
             let first = chars.next().unwrap();
diff --git a/tests/test_generics.rs b/tests/test_generics.rs
index 93cb44f..b96d652 100644
--- a/tests/test_generics.rs
+++ b/tests/test_generics.rs
@@ -117,6 +117,13 @@
         common::parse::syn::<TypeParamBound>(tokens.into())
     );
 
+    let tokens = quote!('_);
+    let expected = TypeParamBound::Lifetime(Lifetime::new(Term::intern("'_"), Span::def_site()));
+    assert_eq!(
+        expected,
+        common::parse::syn::<TypeParamBound>(tokens.into())
+    );
+
     let tokens = quote!(Debug);
     let expected = TypeParamBound::Trait(TraitBound {
         modifier: TraitBoundModifier::None,