diff --git a/decor/on_condition.go b/decor/on_condition.go
new file mode 100644
index 0000000..a9db065
--- /dev/null
+++ b/decor/on_condition.go
@@ -0,0 +1,27 @@
+package decor
+
+// OnPredicate returns decorator if predicate evaluates to true.
+//
+//	`decorator` Decorator
+//
+//	`predicate` func() bool
+//
+func OnPredicate(decorator Decorator, predicate func() bool) Decorator {
+	if predicate() {
+		return decorator
+	}
+	return nil
+}
+
+// OnCondition returns decorator if condition is true.
+//
+//	`decorator` Decorator
+//
+//	`cond` bool
+//
+func OnCondition(decorator Decorator, cond bool) Decorator {
+	if cond {
+		return decorator
+	}
+	return nil
+}