diff --git a/gnss/1.0/IGnssNavigationMessage.hal b/gnss/1.0/IGnssNavigationMessage.hal
index d59b538..11f2096 100644
--- a/gnss/1.0/IGnssNavigationMessage.hal
+++ b/gnss/1.0/IGnssNavigationMessage.hal
@@ -42,7 +42,7 @@
      * expected that the HAL will not generate any updates upon returning
      * this error code.
      */
-     setCallback(IGnssNavigationMessageCallback callback) generates (int32_t initRet);
+     setCallback(IGnssNavigationMessageCallback callback) generates (GnssNavigationMessageStatus initRet);
 
     /*
      * Stops updates from the HAL, and unregisters the callback routines.