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-rw-r--r--src/servo/util/tree.rs2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/servo/util/tree.rs b/src/servo/util/tree.rs
index 612834e61b6..031b4a98042 100644
--- a/src/servo/util/tree.rs
+++ b/src/servo/util/tree.rs
@@ -1,3 +1,5 @@
+use core::vec;
+
// A generic tree datatype.
//
// TODO: Use traits.