1 files changed, 3 insertions, 4 deletions
diff --git a/src/mongo/db/tenant_id.h b/src/mongo/db/tenant_id.h
index 7af08a45d95..dc9b46705c3 100644
--- a/src/mongo/db/tenant_id.h
+++ b/src/mongo/db/tenant_id.h
@@ -55,12 +55,12 @@ public:
      */
     static const TenantId kSystemTenantId;
 
-    explicit TenantId(const OID& oid) : _oid(oid), _idStr(oid.toString()) {}
+    explicit TenantId(const OID& oid) : _oid(oid) {}
 
     TenantId() = delete;
 
-    const std::string& toString() const {
-        return _idStr;
+    std::string toString() const {
+        return _oid.toString();
     }
 
     /**
@@ -105,7 +105,6 @@ public:
 
 private:
     OID _oid;
-    std::string _idStr;
 };
 
 inline bool operator==(const TenantId& lhs, const TenantId& rhs) {