diff --git a/litex/soc/integration/soc_core.py b/litex/soc/integration/soc_core.py
index 33be3dab..079614ef 100644
--- a/litex/soc/integration/soc_core.py
+++ b/litex/soc/integration/soc_core.py
@@ -445,7 +445,7 @@ class SoCCore(Module):

         # Add CSRs / Config items to constants
         for name, constant in self.csrbankarray.constants:
-            self.add_constant(name + "_" + constant.name, constant.value.value)
+            self.add_constant(name.upper() + "_" + constant.name.upper(), constant.value.value)
         for name, value in sorted(self.config.items(), key=itemgetter(0)):
             self.add_constant("CONFIG_" + name.upper(), value)
             if isinstance(value, str):