1 files changed, 0 insertions, 1 deletions
diff --git a/src/tools/tidy/src/deps.rs b/src/tools/tidy/src/deps.rs
index 3bdd6a29537..f83a5b1a2ba 100644
--- a/src/tools/tidy/src/deps.rs
+++ b/src/tools/tidy/src/deps.rs
@@ -273,7 +273,6 @@ const FORBIDDEN_TO_HAVE_DUPLICATES: &[&str] = &[
     // to accidentally sneak into our dependency graph, in order to ensure we keep our CI times
     // under control.
     "cargo",
-    "rustc-ap-rustc_ast",
 ];
 
 /// Dependency checks.