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-rw-r--r--src/libextra/json.rs2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/libextra/json.rs b/src/libextra/json.rs
index 44e965b5c43..f56da368008 100644
--- a/src/libextra/json.rs
+++ b/src/libextra/json.rs
@@ -14,6 +14,8 @@
 
 //! json serialization
 
+use core::prelude::*;
+
 use core::io::{WriterUtil, ReaderUtil};
 use core::hashmap::HashMap;