diff --git a/pdf.c b/pdf.c
index fa6bd1c8e9e137be005fc784f6a6748f6cae839c..d649711646645c3e6fb1a86dac043752e2e4f12a 100644
--- a/pdf.c
+++ b/pdf.c
@@ -1046,6 +1046,7 @@ init_parser(struct Env *aux)
 
 	H_RULE(stream,	h_left(h_bind(stmbeg, kstream, aux), stmend));
 		// XXX is whitespace allowed between the eol and "endstream"?
+		// peter wyatt says no. (2020-03-25)
 
 	/*
 	 * file structure