diff --git a/instrumentation.go b/instrumentation.go
index 434de14e..90b1a684 100644
--- a/instrumentation.go
+++ b/instrumentation.go
@@ -9,19 +9,19 @@ import (
 
 // Instrumenter defines function type that can be used for instrumetation.
 // This function should return a function with no argument as a callback for finished execution.
-type Instrumenter func(ctx context.Context, op string, message string) func(err error)
+type Instrumenter func(ctx context.Context, op string, message string, args ...any) func(err error)
 
 // Observe operation.
-func (i Instrumenter) Observe(ctx context.Context, op string, message string) func(err error) {
+func (i Instrumenter) Observe(ctx context.Context, op string, message string, args ...any) func(err error) {
 	if i != nil {
-		return i(ctx, op, message)
+		return i(ctx, op, message, args)
 	}
 
 	return func(err error) {}
 }
 
 // DefaultLogger instrumentation to log queries and rel operation.
-func DefaultLogger(ctx context.Context, op string, message string) func(err error) {
+func DefaultLogger(ctx context.Context, op string, message string, args ...any) func(err error) {
 	// no op for rel functions.
 	if strings.HasPrefix(op, "rel-") {
 		return func(error) {}