diff --git a/compiler/rustc_query_system/src/query/plumbing.rs b/compiler/rustc_query_system/src/query/plumbing.rs
index 2610ce83e4d3e..4242324b9686c 100644
--- a/compiler/rustc_query_system/src/query/plumbing.rs
+++ b/compiler/rustc_query_system/src/query/plumbing.rs
@@ -385,6 +385,7 @@ where
 /// It returns the shard index and a lock guard to the shard,
 /// which will be used if the query is not in the cache and we need
 /// to compute it.
+#[inline]
 pub fn try_get_cached<'a, CTX, C, R, OnHit>(
     tcx: CTX,
     cache: &'a QueryCacheStore<C>,