diff --git a/internal/kslog/slog.go b/internal/kslog/slog.go
index 3ee2999..309ed72 100644
--- a/internal/kslog/slog.go
+++ b/internal/kslog/slog.go
@@ -14,11 +14,11 @@ import (
 // LogWithContext returns a logger with trace information.
 func LogWithContext(ctx context.Context, logger *slog.Logger) *slog.Logger {
 	s := trace.SpanContextFromContext(ctx)
-	if s.HasTraceID() {
-		logger = logger.With(slog.String("trace_id", s.TraceID().String()))
-	}
-	if s.HasSpanID() {
-		logger = logger.With(slog.String("span_id", s.SpanID().String()))
+	if s.IsValid() {
+		logger = logger.With(
+			slog.String("span_id", s.SpanID().String()),
+			slog.String("trace_id", s.TraceID().String()),
+		)
 	}
 
 	return logger
diff --git a/internal/kslog/slog_level.go b/internal/kslog/slog_level.go
deleted file mode 100644
index f74562d..0000000
--- a/internal/kslog/slog_level.go
+++ /dev/null
@@ -1,42 +0,0 @@
-package kslog
-
-import (
-	"context"
-	"log/slog"
-)
-
-// levelHandler is a slog.Handler implementation that observes logs.
-type levelHandler struct {
-	level slog.Level
-	next  slog.Handler
-}
-
-// NewLogLevelHandler returns a new LevelHandler and the observed logs.
-func NewLevelHandler(level slog.Level) func(slog.Handler) slog.Handler {
-	return func(h slog.Handler) slog.Handler {
-		return &levelHandler{
-			next:  h,
-			level: level,
-		}
-	}
-}
-
-// Handle implements slog.Handler.
-func (h *levelHandler) Handle(ctx context.Context, r slog.Record) error {
-	return h.next.Handle(ctx, r)
-}
-
-// WithAttrs returns a new slog.handler with the provided attributes.
-func (h *levelHandler) WithAttrs(attrs []slog.Attr) slog.Handler {
-	return &levelHandler{level: h.level, next: h.next.WithAttrs(attrs)}
-}
-
-// WithGroup returns a slog.handler with a group, provided the group's name.
-func (h *levelHandler) WithGroup(name string) slog.Handler {
-	return &levelHandler{level: h.level, next: h.next.WithGroup(name)}
-}
-
-// Enabled returns true if the provided level is enabled.
-func (h levelHandler) Enabled(_ context.Context, lv slog.Level) bool {
-	return lv >= h.level
-}