diff --git a/src/test/rustdoc-ui/ambiguous-inherent-assoc-ty.rs b/src/test/rustdoc-ui/ambiguous-inherent-assoc-ty.rs
index 3ad56aebc21..e58bba64058 100644
--- a/src/test/rustdoc-ui/ambiguous-inherent-assoc-ty.rs
+++ b/src/test/rustdoc-ui/ambiguous-inherent-assoc-ty.rs
@@ -11,7 +11,6 @@ impl Struct {
     pub const AssocConst: Self::AssocTy = 42;
     //~^ ERROR ambiguous associated type
     //~| HELP use fully-qualified syntax
-    // FIXME: for some reason, the error is shown twice with rustdoc but only once with rustc
     //~| ERROR ambiguous associated type
     //~| HELP use fully-qualified syntax
 }