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-rw-r--r--dhall_parser/build.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/dhall_parser/build.rs b/dhall_parser/build.rs
index a07c7e0..fc398ff 100644
--- a/dhall_parser/build.rs
+++ b/dhall_parser/build.rs
@@ -35,7 +35,7 @@ fn main() -> std::io::Result<()> {
writeln!(&mut file)?;
writeln!(
&mut file,
- "simple_label = _{{
+ "simple_label = {{
keyword_raw ~ simple_label_next_char+
| !keyword_raw ~ simple_label_first_char ~ simple_label_next_char*
}}"