diff --git a/core/src/main/java/com/google/adk/flows/llmflows/Functions.java b/core/src/main/java/com/google/adk/flows/llmflows/Functions.java
index 950d4c5e..ed4ebc88 100644
--- a/core/src/main/java/com/google/adk/flows/llmflows/Functions.java
+++ b/core/src/main/java/com/google/adk/flows/llmflows/Functions.java
@@ -263,8 +263,7 @@ private static Function<FunctionCall, Maybe<Event>> getFunctionCallMapper(
                 invocationContext));
       }
 
-      Map<String, Object> functionArgs =
-          functionCall.args().orElse(isLive ? new HashMap<>() : ImmutableMap.of());
+      Map<String, Object> functionArgs = functionCall.args().orElse(new HashMap<>());
 
       Maybe<Map<String, Object>> maybeFunctionResult =
           maybeInvokeBeforeToolCall(invocationContext, tool, functionArgs, toolContext)