diff --git a/langfuse/model.py b/langfuse/model.py
index 42e8fe844..b6a81b32f 100644
--- a/langfuse/model.py
+++ b/langfuse/model.py
@@ -76,7 +76,8 @@ def _get_langchain_prompt_string(content: str):
         return re.sub(r"\{\{(.*?)\}\}", r"{\g<1>}", content)
 
     @staticmethod
-    def _compile_template_string(content: str, **kwargs) -> str:
+    def _compile_template_string(*args, **kwargs) -> str:
+        content = args[0]
         opening = "{{"
         closing = "}}"
 
diff --git a/tests/test_prompt_compilation.py b/tests/test_prompt_compilation.py
index d26b72835..c8b532157 100644
--- a/tests/test_prompt_compilation.py
+++ b/tests/test_prompt_compilation.py
@@ -169,3 +169,13 @@ def test_unescaped_JSON_variable_value():
 )
 def test_various_templates(template, kwargs, expected):
     assert BasePromptClient._compile_template_string(template, **kwargs) == expected
+
+
+def test_content_var():
+    template = "Hello, {{content}}!"
+    expected = "Hello, Thomas!"
+
+    assert (
+        BasePromptClient._compile_template_string(template, content="Thomas")
+        == expected
+    )