diff --git a/src/nzg_bufferGetFreeIndex.c b/src/nzg_bufferGetFreeIndex.c
index aeed37f..89d7762 100644
--- a/src/nzg_bufferGetFreeIndex.c
+++ b/src/nzg_bufferGetFreeIndex.c
@@ -6,6 +6,7 @@ int bufferInfoTabFd;
 msgBufferInfo * bufferInfoTabAddr;
 int bufferInfoNb;  
 int bufferFreeIndex;
+int i;
 
   //récuperer l'ID du BufferInfoTab;
   strcpy(bufferInfoTabId, poolDataTabAddr[poolIndex].bufferInfoTabId);
@@ -21,7 +22,7 @@ int bufferFreeIndex;
   bufferInfoTabAddr=mmap(NULL,bufferInfoNb*sizeof(msgBufferInfo),
 	  PROT_READ,MAP_SHARED,bufferInfoTabFd,(off_t)0);
 
-  int i=0;
+  i=0;
   while ((i<bufferInfoNb) 
 	  && (bufferInfoTabAddr[i].ownerPid != (pid_t)-1)){ i++; }
   if (i == bufferInfoNb){ return -1; }