diff --git a/python/test/unit/language/test_core.py b/python/test/unit/language/test_core.py
index 20a1f88878437..8a3dc3c3a2a58 100644
--- a/python/test/unit/language/test_core.py
+++ b/python/test/unit/language/test_core.py
@@ -513,6 +513,14 @@ def test_dtype_codegen():
         assert repr(eval(full_name)) == full_name
 
 
+@pytest.mark.parameterize("dtype", [
+    tl.pointer_type(tl.int8),
+    tl.block_type(tl.int8, [42])
+])
+def test_dtype_is_hashable(dtype):
+    hash(dtype)
+
+
 # ---------------
 # test binary ops
 # ---------------
diff --git a/python/triton/language/core.py b/python/triton/language/core.py
index 90c361424036d..9d97092bfe647 100644
--- a/python/triton/language/core.py
+++ b/python/triton/language/core.py
@@ -594,6 +594,8 @@ def __eq__(self, other: pointer_type) -> bool:
     def __ne__(self, other: pointer_type) -> bool:
         return not self.__eq__(other)
 
+    __hash__ = dtype.__hash__
+
     @property
     def scalar(self):
         return self
@@ -646,6 +648,8 @@ def __eq__(self, other: block_type) -> bool:
     def __ne__(self, other: block_type) -> bool:
         return not self.__eq__(other)
 
+    __hash__ = dtype.__hash__
+
     @property
     def scalar(self):
         return self.element_ty