diff --git a/src/modules/src/crtp_localization_service.c b/src/modules/src/crtp_localization_service.c
index 0f74d49704..8fbde6bc62 100644
--- a/src/modules/src/crtp_localization_service.c
+++ b/src/modules/src/crtp_localization_service.c
@@ -115,7 +115,7 @@ static void locSrvCrtpCB(CRTPPacket* pk)
 
 static void extPositionHandler(CRTPPacket* pk)
 {
-  const struct CrtpExtPosition* data = (const struct CrtpExtPosition*)pk;
+  const struct CrtpExtPosition* data = (const struct CrtpExtPosition*)pk->data;
 
   ext_pos.x = data->x;
   ext_pos.y = data->y;