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-rw-r--r--src/librustc/ich/impls_syntax.rs3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/librustc/ich/impls_syntax.rs b/src/librustc/ich/impls_syntax.rs
index dbf0147928a..439c6e42e1a 100644
--- a/src/librustc/ich/impls_syntax.rs
+++ b/src/librustc/ich/impls_syntax.rs
@@ -423,7 +423,8 @@ impl_stable_hash_for!(enum ::syntax_pos::FileName {
     ProcMacroSourceCode(s),
     CliCrateAttr(s),
     CfgSpec(s),
-    Custom(s)
+    Custom(s),
+    DocTest(pb, line),
 });
 
 impl<'a> HashStable<StableHashingContext<'a>> for SourceFile {