diff --git a/src/librustc_incremental/calculate_svh/svh_visitor.rs b/src/librustc_incremental/calculate_svh/svh_visitor.rs
index 84f4ac4b7457..db062d6dca96 100644
--- a/src/librustc_incremental/calculate_svh/svh_visitor.rs
+++ b/src/librustc_incremental/calculate_svh/svh_visitor.rs
@@ -163,8 +163,6 @@ impl<'a, 'hash, 'tcx> StrictVersionHashVisitor<'a, 'hash, 'tcx> {
             _ => SawSpanExpnKind::SomeExpansion,
         };
 
-        expansion_kind.hash(self.st);
-
         SawSpan(&file1.name[..], line1, col1,
                 &file2.name[..], line2, col2,
                 expansion_kind).hash(self.st);