diff --git a/src/libsyntax/feature_gate.rs b/src/libsyntax/feature_gate.rs
index 689b4595d39..0d51816dbdb 100644
--- a/src/libsyntax/feature_gate.rs
+++ b/src/libsyntax/feature_gate.rs
@@ -399,7 +399,7 @@ impl<'a> Context<'a> {
         } else {
             self.gate_feature("custom_attribute", attr.span,
                        &format!("The attribute `{}` is currently \
-                                unknown to the the compiler and \
+                                unknown to the compiler and \
                                 may have meaning \
                                 added to it in the future",
                                 name));