diff --git a/pdf.c b/pdf.c
index ed6afd0326403345282b893da4fea696848d9f41..144724bffd29935267b8fdcb759697f93218deee 100644
--- a/pdf.c
+++ b/pdf.c
@@ -383,7 +383,7 @@ Fontinfo_T *lookup_font(TextState_T *state, struct Env *aux);
  * custom token types
  */
 HTokenType TT_XREntry, TT_Ref, TT_Dict, TT_Null;
-HTokenType TT_HParseResult;	// XXX what is this for?!
+HTokenType TT_HParseResult;				/* parsed stream data */
 HTokenType TT_TextEntry, TT_ObjStm;
 
 typedef struct {
@@ -3457,10 +3457,11 @@ p_take__m(HAllocator *mm__, size_t n, struct Env *aux)
 
 
 // Parser for object streams
+// XXX move this back where it belongs (trawl git log)
 HParser *p_objstm__m(HAllocator *, const Dict *);
 
 // Action for stream continuation
-HParsedToken *act_ks_value(const HParseResult *p, void *u);
+// XXX move this back next to act_ks_value() where it belongs
 struct streamspec {
 	Dict *dict;		/* stream dictionary */
 	HParser *parser;	/* data parser */
@@ -4532,7 +4533,6 @@ act_ks_value(const HParseResult *p, void *u)
 			b.len = INT_MAX;
 		log_message(7, "parse error in stream (type %*s)\n",
 		    (int)b.len, b.token);
-		// XXX return the undecoded stream (p->ast)?
 	}
 	return H_MAKE(HParseResult, res);
 }