diff --git a/src/node_sqlite.cc b/src/node_sqlite.cc
index 0eccb2f7103563..5e035d64b875f2 100644
--- a/src/node_sqlite.cc
+++ b/src/node_sqlite.cc
@@ -2664,8 +2664,7 @@ SQLTagStore::SQLTagStore(Environment* env,
                          int capacity)
     : BaseObject(env, object),
       database_(std::move(database)),
-      sql_tags_(capacity),
-      capacity_(capacity) {
+      sql_tags_(capacity) {
   MakeWeak();
 }
 
diff --git a/src/node_sqlite.h b/src/node_sqlite.h
index 5838e8f59c2ef0..2641c9d4f1e8c5 100644
--- a/src/node_sqlite.h
+++ b/src/node_sqlite.h
@@ -330,7 +330,6 @@ class SQLTagStore : public BaseObject {
       const v8::FunctionCallbackInfo<v8::Value>& args);
   BaseObjectWeakPtr<DatabaseSync> database_;
   LRUCache<std::string, BaseObjectPtr<StatementSync>> sql_tags_;
-  int capacity_;
   friend class StatementExecutionHelper;
 };