diff --git a/gnoemoe/mcp/Makefile.include b/gnoemoe/mcp/Makefile.include
index 836867c..a090409 100644
--- a/gnoemoe/mcp/Makefile.include
+++ b/gnoemoe/mcp/Makefile.include
@@ -6,4 +6,5 @@ gnoemoe_SOURCES += \
 		$(mcpdir)/gm-mcp.c $(mcpdir)/gm-mcp.h \
 		$(mcpdir)/gm-mcp-session.c $(mcpdir)/gm-mcp-session.h \
 		$(mcpdir)/gm-mcp-package.c $(mcpdir)/gm-mcp-package.h \
+		$(mcpdir)/gm-iuserlist.c $(mcpdir)/gm-iuserlist.h \
 		$(mcpdir)/gm-mcp-userlist-view.c $(mcpdir)/gm-mcp-userlist-view.h