1 files changed, 1 insertions, 1 deletions
diff --git a/malloc.c b/malloc.c
index 2ff22fd..4389d8a 100644
--- a/malloc.c
+++ b/malloc.c
@@ -91,7 +91,7 @@ void *(srealloc)(LOGPARAMS void *p, int size) {
  * dupstr is like strdup, but with the never-return-NULL property
  * of smalloc (and also reliably defined in all environments :-)
  */
-char *dupstr(char *s) {
+char *dupstr(char const *s) {
     char *r = smalloc(1+strlen(s));
     strcpy(r,s);
     return r;