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-rw-r--r--compiler/rustc_query_impl/src/lib.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/compiler/rustc_query_impl/src/lib.rs b/compiler/rustc_query_impl/src/lib.rs
index d7708a3bc3f..035bfe978f2 100644
--- a/compiler/rustc_query_impl/src/lib.rs
+++ b/compiler/rustc_query_impl/src/lib.rs
@@ -31,6 +31,7 @@ use rustc_span::Span;
 #[macro_use]
 mod plumbing;
 pub use plumbing::QueryCtxt;
+use rustc_query_system::dep_graph::SerializedDepNodeIndex;
 use rustc_query_system::query::*;
 #[cfg(parallel_compiler)]
 pub use rustc_query_system::query::{deadlock, QueryContext};