Index: uspace/lib/c/arch/amd64/src/stacktrace.c
===================================================================
--- uspace/lib/c/arch/amd64/src/stacktrace.c	(revision 0e575cdc8d29c1cb7de15dd37083948ad62165aa)
+++ uspace/lib/c/arch/amd64/src/stacktrace.c	(revision 54a1ca73a9e9c3abb6bdcc1ae84ff0213fe6f721)
@@ -51,10 +51,10 @@
 int stacktrace_fp_prev(stacktrace_t *st, uintptr_t fp, uintptr_t *prev)
 {
-	return (*st->read_uintptr)(st->op_arg, fp + FRAME_OFFSET_FP_PREV, prev);
+	return (*st->ops->read_uintptr)(st->op_arg, fp + FRAME_OFFSET_FP_PREV, prev);
 }
 
 int stacktrace_ra_get(stacktrace_t *st, uintptr_t fp, uintptr_t *ra)
 {
-	return (*st->read_uintptr)(st->op_arg, fp + FRAME_OFFSET_RA, ra);
+	return (*st->ops->read_uintptr)(st->op_arg, fp + FRAME_OFFSET_RA, ra);
 }