Fix in outopts processing.

1 files changed, 1 insertions, 1 deletions

diff --git a/html.c b/html.c
index 03f6a35b..003a0db0 100644
--- a/html.c
+++ b/html.c
@@ -424,7 +424,7 @@ html_alloc(char *outopts)
 		return(NULL);
 	}
 
-	while (*outopts)
+	while (outopts && *outopts)
 		switch (getsubopt(&outopts, toks, &v)) {
 		case (0):
 			h->style = v;