diff --git a/src/nzg_spaces.c b/src/nzg_spaces.c
index a94995f..bc9f3be 100644
--- a/src/nzg_spaces.c
+++ b/src/nzg_spaces.c
@@ -33,7 +33,8 @@ msgSpace * msgSpaceCreate(
 	  MSGSPACE_DEFAULT_MODE
 	  );
   if (mSFd == -1 ) {
-	fprintf( stderr, "msgSpace creation failed: %s\n",
+	fprintf( stderr, "msgSpace %s creation failed: %s\n",
+ 		(char*)nzgId,
 		strerror( errno ) );
 	return NULL;
   }
@@ -55,7 +56,7 @@ msgSpace * msgSpaceCreate(
         return NULL;
     }
 
-	printf( "Map addr is 0x%08x\n", mSAddr );
+	printf( "Map addr is 0x%08x\n", (int)mSAddr );
 
 	/* on ferme le descripteur du fichier */
 	close(mSFd);
@@ -100,6 +101,7 @@ msgSpaceId msgSp2nzgId(msgSpaceId spaceId){
   int slen;
   slen=strlen(spaceId);
   resNzgId = (char *)malloc(sizeof(char)*(slen+11));
-  sprintf(resNzgId,"/tmp/.nzg-%s",(char *)spaceId);
+  /* sprintf(resNzgId,"/tmp/.nzg-%s",(char *)spaceId); */
+  sprintf(resNzgId,"/nzgSpace%s",(char *)spaceId);
   return ((msgSpaceId)resNzgId);
 }