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-rw-r--r--src/librustdoc/lib.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/librustdoc/lib.rs b/src/librustdoc/lib.rs
index e02d92b11b8..ab94e0d5683 100644
--- a/src/librustdoc/lib.rs
+++ b/src/librustdoc/lib.rs
@@ -5,6 +5,7 @@
 #![feature(rustc_private)]
 #![feature(array_methods)]
 #![feature(box_patterns)]
+#![feature(control_flow_enum)]
 #![feature(in_band_lifetimes)]
 #![feature(nll)]
 #![feature(test)]