diff --git a/src/ids.c b/src/ids.c
index 88247d6..403a13a 100644
--- a/src/ids.c
+++ b/src/ids.c
@@ -87,5 +87,20 @@ int msgBufferInfoTabIdIntern(
   return 0;
 }
 
+int msgQueueSemIdIntern(
+	msgQueueSemId dest,
+	msgSpaceId externId, 
+	int queueIdx){
+  if (strlen(externId)>MSGSPACE_ID_LEN){
+	return -1;
+  }
+#ifdef _NZG_REALFILEID
+  sprintf(dest,"/tmp/nzgQueue-%s-%d",(char *)externId,queueIdx);
+#else
+  sprintf(dest,"/nzgQueue-%s-%d",(char *)externId,queueIdx);
+#endif
+  return 0;
+}
+
 
 #endif
diff --git a/src/ids.h b/src/ids.h
index 6dcd08c..d6c4e58 100644
--- a/src/ids.h
+++ b/src/ids.h
@@ -8,6 +8,9 @@ int msgSpaceIdIntern(msgSpaceId dest, const msgSpaceId src);
 int msgPoolSemIdIntern(msgPoolSemId destSemId, const msgSpaceId srcPoolId, int poolIdx);
 int msgPoolDataIdIntern(msgPoolDataTabId dest, const msgSpaceId src);
 int msgPoolIdIntern(msgPoolId dest,msgPoolId src, int num);
-
+int msgQueueSemIdIntern(
+	msgQueueSemId dest,
+	msgSpaceId externId, 
+	int queueIdx);
 
 #endif