diff --git a/include/spdlog/sinks/base_sink.h b/include/spdlog/sinks/base_sink.h
index 8d4a47cc..5f50ff14 100644
--- a/include/spdlog/sinks/base_sink.h
+++ b/include/spdlog/sinks/base_sink.h
@@ -60,7 +60,7 @@ protected:
 
     virtual void set_pattern_(const std::string &pattern)
     {
-        formatter_ = spdlog::make_unique<spdlog::pattern_formatter>(pattern);
+        set_formatter_(spdlog::make_unique<spdlog::pattern_formatter>(pattern));
     }
 
     virtual void set_formatter_(std::unique_ptr<spdlog::formatter> sink_formatter)