diff --git a/hibernate-project/src/main/java/com/humanbooster/annotation/Pair.java b/hibernate-project/src/main/java/com/humanbooster/annotation/Pair.java
new file mode 100644
index 0000000..ed1f41d
--- /dev/null
+++ b/hibernate-project/src/main/java/com/humanbooster/annotation/Pair.java
@@ -0,0 +1,6 @@
+package com.humanbooster.annotation;
+
+public @interface Pair {
+
+    String message() default "Le nombre doit être pair";
+}