diff --git a/src/nzg_iface.h b/src/nzg_iface.h
index 69edfb3..b74393b 100644
--- a/src/nzg_iface.h
+++ b/src/nzg_iface.h
@@ -6,9 +6,10 @@
 #define MSGSPACE_DEFAULT_MODE 0600
 
 typedef char * msgSpaceId;
-typedef char * msgSpaceListId;
 
+typedef char * msgSpaceListId;
 typedef char * msgSpaceListElemId;
+
 typedef char * msgSpacePoolDataId;
 typedef char * msgSpacePoolId;
 typedef char * msgSpaceQueueDataId;