diff --git a/llvmlite/ir/values.py b/llvmlite/ir/values.py
index 7807eef6b..0973a9b8c 100644
--- a/llvmlite/ir/values.py
+++ b/llvmlite/ir/values.py
@@ -705,6 +705,13 @@ class DIToken:
 
     Use this to wrap known constants, e.g. the DW_* enumerations.
     """
+    _instance = None
+
+    def __new__(cls, value):
+        if not cls._instance or cls._instance.value != value:
+            cls._instance = super().__new__(cls)
+            cls._instance.value = value
+        return cls._instance
 
     def __init__(self, value):
         self.value = value