1 files changed, 1 insertions, 1 deletions
diff --git a/debug.c b/debug.c
index aff8251..e270a7a 100644
--- a/debug.c
+++ b/debug.c
@@ -54,7 +54,7 @@ static void prinbindings P((SCM names, SCM inits, SCM init_env,
 
 SCM scm_env_rlookup(addr, stenv, what)
      SCM addr, stenv;
-     char *what;
+     const char *what;
 {
   SCM env, fr;
   int icdrp;