diff --git a/src/queueLock.c b/src/queueLock.c
index 2c18bfe..393909f 100644
--- a/src/queueLock.c
+++ b/src/queueLock.c
@@ -1,10 +1,11 @@
 #include "libnazgul.h"
+#include "ids.h"
 
 int queueLock(msgSpaceId externId,int queueIdx){
   sem_t * queueSemFd;
   msgQueueSemId queueSemId;
 
-  msgQueueSemIdIntern(queueSemId,externId);
+  msgQueueSemIdIntern(queueSemId,externId,queueIdx);
   queueSemFd=sem_open(queueSemId,O_CREAT|O_EXCL,SEM_DEFAULT_MODE,1);
   if(queueSemFd==SEM_FAILED){
 	NZG_ERROR("sem_open",queueSemId);
diff --git a/src/queueUnlock.c b/src/queueUnlock.c
index 46f702d..0306195 100644
--- a/src/queueUnlock.c
+++ b/src/queueUnlock.c
@@ -1,5 +1,26 @@
 #include "libnazgul.h"
+#include "ids.h"
 
-int queueUnlock(msgSpaceId spaceid,int queueIdx){
+int queueUnlock(msgSpaceId externId,int queueIdx){
+ sem_t * queueSemFd;
+  msgQueueSemId queueSemId;
+
+  msgQueueSemIdIntern(queueSemId,externId,queueIdx);
+  queueSemFd=sem_open(queueSemId,O_CREAT|O_EXCL,SEM_DEFAULT_MODE,1);
+  if(queueSemFd==SEM_FAILED){
+	NZG_ERROR("sem_open",queueSemId);
+	goto ERROR;
+  }
+
+  if(sem_post(queueSemFd)==-1){
+	NZG_ERROR("sem_post",queueSemId);
+	goto ERROR;
+  }
+
+  sem_close(queueSemFd);
+
+  return 0;
+ERROR:
   return -1;
 }
+