1 files changed, 5 insertions, 5 deletions

diff --git a/crates/mbe/src/lib.rs b/crates/mbe/src/lib.rs
index b95374b76..380a50744 100644
--- a/crates/mbe/src/lib.rs
+++ b/crates/mbe/src/lib.rs
@@ -295,8 +295,8 @@ fn validate(pattern: &MetaTemplate) -> Result<(), ParseError> {
                 // Checks that no repetition which could match an empty token
                 // https://github.com/rust-lang/rust/blob/a58b1ed44f5e06976de2bdc4d7dc81c36a96934f/src/librustc_expand/mbe/macro_rules.rs#L558
 
-                if separator.is_none() {
-                    if subtree.iter().all(|child_op| {
+                if separator.is_none()
+                    && subtree.iter().all(|child_op| {
                         match child_op {
                             Op::Var { kind, .. } => {
                                 // vis is optional
@@ -314,9 +314,9 @@ fn validate(pattern: &MetaTemplate) -> Result<(), ParseError> {
                             Op::Subtree { .. } => {}
                         }
                         false
-                    }) {
-                        return Err(ParseError::RepetitionEmptyTokenTree);
-                    }
+                    })
+                {
+                    return Err(ParseError::RepetitionEmptyTokenTree);
                 }
                 validate(subtree)?
             }