diff --git a/src/librustc_query_system/query/caches.rs b/src/librustc_query_system/query/caches.rs
index f0beec0a17726..1839e1af45eef 100644
--- a/src/librustc_query_system/query/caches.rs
+++ b/src/librustc_query_system/query/caches.rs
@@ -43,9 +43,8 @@ pub trait QueryCache: QueryStorage {
         OnHit: FnOnce(&Self::Stored, DepNodeIndex) -> R,
         OnMiss: FnOnce(Self::Key, QueryLookup<'_, CTX, Self::Key, Self::Sharded>) -> R;
 
-    fn complete<CTX: QueryContext>(
+    fn complete(
         &self,
-        tcx: CTX,
         lock_sharded_storage: &mut Self::Sharded,
         key: Self::Key,
         value: Self::Value,
@@ -112,9 +111,8 @@ impl<K: Eq + Hash, V: Clone> QueryCache for DefaultCache<K, V> {
     }
 
     #[inline]
-    fn complete<CTX: QueryContext>(
+    fn complete(
         &self,
-        _: CTX,
         lock_sharded_storage: &mut Self::Sharded,
         key: K,
         value: V,
@@ -195,9 +193,8 @@ impl<'tcx, K: Eq + Hash, V: 'tcx> QueryCache for ArenaCache<'tcx, K, V> {
     }
 
     #[inline]
-    fn complete<CTX: QueryContext>(
+    fn complete(
         &self,
-        _: CTX,
         lock_sharded_storage: &mut Self::Sharded,
         key: K,
         value: V,
diff --git a/src/librustc_query_system/query/plumbing.rs b/src/librustc_query_system/query/plumbing.rs
index cc7d0a1570355..ae042cc808126 100644
--- a/src/librustc_query_system/query/plumbing.rs
+++ b/src/librustc_query_system/query/plumbing.rs
@@ -264,7 +264,7 @@ where
     /// Completes the query by updating the query cache with the `result`,
     /// signals the waiter and forgets the JobOwner, so it won't poison the query
     #[inline(always)]
-    fn complete(self, tcx: CTX, result: C::Value, dep_node_index: DepNodeIndex) -> C::Stored {
+    fn complete(self, result: C::Value, dep_node_index: DepNodeIndex) -> C::Stored {
         // We can move out of `self` here because we `mem::forget` it below
         let key = unsafe { ptr::read(&self.key) };
         let state = self.state;
@@ -278,7 +278,7 @@ where
                 QueryResult::Started(job) => job,
                 QueryResult::Poisoned => panic!(),
             };
-            let result = state.cache.complete(tcx, &mut lock.cache, key, result, dep_node_index);
+            let result = state.cache.complete(&mut lock.cache, key, result, dep_node_index);
             (job, result)
         };
 
@@ -432,7 +432,7 @@ where
             tcx.store_diagnostics_for_anon_node(dep_node_index, diagnostics);
         }
 
-        return job.complete(tcx, result, dep_node_index);
+        return job.complete(result, dep_node_index);
     }
 
     let dep_node = query.to_dep_node(tcx, &key);
@@ -458,7 +458,7 @@ where
             })
         });
         if let Some((result, dep_node_index)) = loaded {
-            return job.complete(tcx, result, dep_node_index);
+            return job.complete(result, dep_node_index);
         }
     }
 
@@ -609,7 +609,7 @@ where
         }
     }
 
-    let result = job.complete(tcx, result, dep_node_index);
+    let result = job.complete(result, dep_node_index);
 
     (result, dep_node_index)
 }