diff --git a/litellm/integrations/langfuse.py b/litellm/integrations/langfuse.py
index e7fb8bb482..d6c235d0cb 100644
--- a/litellm/integrations/langfuse.py
+++ b/litellm/integrations/langfuse.py
@@ -605,6 +605,12 @@ class LangFuseLogger:
             if "cache_key" in litellm.langfuse_default_tags:
                 _hidden_params = metadata.get("hidden_params", {}) or {}
                 _cache_key = _hidden_params.get("cache_key", None)
+                if _cache_key is None:
+                    # fallback to using "preset_cache_key"
+                    _preset_cache_key = kwargs.get("litellm_params", {}).get(
+                        "preset_cache_key", None
+                    )
+                    _cache_key = _preset_cache_key
                 tags.append(f"cache_key:{_cache_key}")
         return tags