diff --git a/langfuse/_client/resource_manager.py b/langfuse/_client/resource_manager.py
index 23b6ee557..59fb54444 100644
--- a/langfuse/_client/resource_manager.py
+++ b/langfuse/_client/resource_manager.py
@@ -173,6 +173,7 @@ def _initialize_instance(
         self.sample_rate = sample_rate
         self.blocked_instrumentation_scopes = blocked_instrumentation_scopes
         self.additional_headers = additional_headers
+        self.tracer_provider = None
 
         # OTEL Tracer
         if tracing_enabled: