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-rw-r--r--compiler/rustc_parse/src/lib.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/rustc_parse/src/lib.rs b/compiler/rustc_parse/src/lib.rs
index 62fd6936d21..c365acac625 100644
--- a/compiler/rustc_parse/src/lib.rs
+++ b/compiler/rustc_parse/src/lib.rs
@@ -292,7 +292,7 @@ pub fn nt_to_tokenstream(
     } else if matches!(synthesize_tokens, CanSynthesizeMissingTokens::Yes) {
         return fake_token_stream(sess, nt);
     } else {
-        panic!("Missing tokens for nt {:?}", pprust::nonterminal_to_string(nt));
+        panic!("Missing tokens for nt at {:?}: {:?}", nt.span(), pprust::nonterminal_to_string(nt));
     }
 }