diff --git a/radio/1.0/IRadio.hal b/radio/1.0/IRadio.hal
index 0b1bf40..7667523 100644
--- a/radio/1.0/IRadio.hal
+++ b/radio/1.0/IRadio.hal
@@ -33,7 +33,7 @@
      * @param radioResponse Object containing response functions
      * @param radioIndication Object containing radio indications
      */
-    setResponseFunctions(IRadioResponse radioResponse,
+    oneway setResponseFunctions(IRadioResponse radioResponse,
             IRadioIndication radioIndication);
 
     /*
diff --git a/radio/1.0/ISap.hal b/radio/1.0/ISap.hal
index 0351130..a11ca93 100644
--- a/radio/1.0/ISap.hal
+++ b/radio/1.0/ISap.hal
@@ -24,7 +24,7 @@
      *
      * @param sapCallback Object containing response and unosolicited indication callbacks
      */
-    setCallback(ISapCallback sapCallback);
+    oneway setCallback(ISapCallback sapCallback);
 
     /**
      * CONNECT_REQ from SAP 1.1 spec 5.1.1