diff --git a/letta/agent.py b/letta/agent.py
index 3217a52d0d..831e0f4a71 100644
--- a/letta/agent.py
+++ b/letta/agent.py
@@ -551,18 +551,19 @@ def _handle_ai_response(
             )  # extend conversation with assistant's reply
             printd(f"Function call message: {messages[-1]}")
 
-            # The content if then internal monologue, not chat
-            self.interface.internal_monologue(response_message.content, msg_obj=messages[-1])
+            if response_message.content:
+                # The content if then internal monologue, not chat
+                self.interface.internal_monologue(response_message.content, msg_obj=messages[-1])
 
             # Step 3: call the function
             # Note: the JSON response may not always be valid; be sure to handle errors
-
-            # Failure case 1: function name is wrong
             function_call = (
                 response_message.function_call if response_message.function_call is not None else response_message.tool_calls[0].function
             )
             function_name = function_call.name
             printd(f"Request to call function {function_name} with tool_call_id: {tool_call_id}")
+
+            # Failure case 1: function name is wrong
             try:
                 function_to_call = self.functions_python[function_name]
             except KeyError: