diff --git a/tools/kconfig2html.c b/tools/kconfig2html.c
index 1ec003ef505..001d9b96edd 100644
--- a/tools/kconfig2html.c
+++ b/tools/kconfig2html.c
@@ -702,6 +702,8 @@ static char *read_line(FILE *stream)
           g_line[len] = '\0';
         }
 
+      /* A blank line has no continuation marker to inspect. */
+
       if (len == 0)
         {
           g_lnptr = g_line;