diff --git a/lib/m2/getenv.c b/lib/m2/getenv.c
index 8b12db22..f703f35d 100644
--- a/lib/m2/getenv.c
+++ b/lib/m2/getenv.c
@@ -1,4 +1,4 @@
-/* -*-comment-start: "//";comment-end:""-*-
+/* -*-comment-start: "
  * GNU Mes --- Maxwell Equations of Software
  * Copyright © 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
  *
@@ -25,18 +25,22 @@
 char *
 getenv (char *s)
 {
+  /* eputs ("\ngetenv s="); eputs (s); eputs ("\n"); */
   char **p = environ;
   int length = strlen (s);
-
   while (p[0] != 0)
     {
+      /* eputs ("getenv p[0]="); eputs (p[0]); eputs ("\n"); */
       if (strncmp (s, p[0], length) == 0)
         {
+          /* eputs ("found!\n"); */
           char *q = p[0] + length;
           if (q[0] == '=')
             return q + 1;
         }
-      p = p + 1;
+      /* else */
+      /*   eputs ("not found!\n"); */
+      p = p + sizeof (char *); /* FIXME! */
     }
 
   return 0;