diff --git a/src/cmd/fontsrv/wayland.c b/src/cmd/fontsrv/wayland.c
index 53a00c66..f10d3b6b 100644
--- a/src/cmd/fontsrv/wayland.c
+++ b/src/cmd/fontsrv/wayland.c
@@ -1 +1,3 @@
+// note: the fontsrv implementation for X11 and wayland are the same.
+// this non-standard include is an alternative to copying the file.
 #include "x11.c"