diff --git a/src/ids.c b/src/ids.c
index 1b75a0d..2ce117a 100644
--- a/src/ids.c
+++ b/src/ids.c
@@ -119,7 +119,7 @@ int msgQueueIdIntern(
 
 int msgQueueElemIdIntern(
 	msgQueueElemId dest,
-	msgQueueId src
+	msgQueueId src,
 	int counter){
   if (strlen(src)>MSGSPACE_ID_LEN){
 	return -1;
diff --git a/src/iface.h b/src/iface.h
index bb59dd8..c0756aa 100644
--- a/src/iface.h
+++ b/src/iface.h
@@ -78,8 +78,8 @@ typedef struct MsgQueueElem {
 typedef struct MsgQueue {
   msgQueueId id;
   int elemCounter;
-  msgQueueElemId head; 
-  msgQueueElemId tail;
+  msgQueueElemId headId; 
+  msgQueueElemId tailId;
 } msgQueue;
 
 #endif