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-rw-r--r--libguile/backtrace.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libguile/backtrace.c b/libguile/backtrace.c
index 803f5aaaa..290627fbb 100644
--- a/libguile/backtrace.c
+++ b/libguile/backtrace.c
@@ -302,7 +302,7 @@ SCM_DEFINE (scm_set_print_params_x, "set-print-params!", 1, 0, 0,
print_params_t *new_params;
SCM_VALIDATE_NONEMPTYLIST_COPYLEN (2, params, n);
- for (ls = params; !SCM_NULLP (ls); ls = SCM_CDR (ls))
+ for (ls = params; !SCM_NULL_OR_NIL_P (ls); ls = SCM_CDR (ls))
SCM_ASSERT (scm_ilength (SCM_CAR (params)) == 2
&& SCM_INUMP (SCM_CAAR (ls))
&& SCM_INUM (SCM_CAAR (ls)) >= 0