diff --git a/python/triton/language/core.py b/python/triton/language/core.py
index 7d108f42c5a9..703936bf8e2b 100644
--- a/python/triton/language/core.py
+++ b/python/triton/language/core.py
@@ -2497,17 +2497,17 @@ def kernel(...):
     """
 
     def __init__(self, arg1, arg2=None, step=None):
-        assert isinstance(arg1, constexpr)
+        assert isinstance(arg1, constexpr), f"{arg1} used as tl.static_range start value is not a constexpr"
         if step is None:
             self.step = constexpr(1)
         else:
-            assert isinstance(step, constexpr)
+            assert isinstance(step, constexpr), f"{step} used as tl.static_range step value is not a constexpr"
             self.step = step
         if arg2 is None:
             self.start = constexpr(0)
             self.end = arg1
         else:
-            assert isinstance(arg2, constexpr)
+            assert isinstance(arg2, constexpr), f"{arg2} used as tl.static_range end value is not a constexpr"
             self.start = arg1
             self.end = arg2