diff --git a/core/types/block.go b/core/types/block.go
index a704d23043..90cb5df408 100644
--- a/core/types/block.go
+++ b/core/types/block.go
@@ -309,7 +309,6 @@ func CopyHeader(h *Header) *Header {
 	}
 	if h.ExecutionWitness != nil {
 		cpy.ExecutionWitness = h.ExecutionWitness.Copy()
-
 	}
 	return &cpy
 }
diff --git a/core/vm/interpreter.go b/core/vm/interpreter.go
index 1b980ccb13..1bc0e80dfc 100644
--- a/core/vm/interpreter.go
+++ b/core/vm/interpreter.go
@@ -179,7 +179,7 @@ func (in *EVMInterpreter) Run(contract *Contract, input []byte, readOnly bool) (
 			logged, pcCopy, gasCopy = false, pc, contract.Gas
 		}
 
-		if in.evm.chainRules.IsCancun && !contract.IsDeployment {
+		if in.evm.chainRules.IsPrague && !contract.IsDeployment {
 			// if the PC ends up in a new "chunk" of verkleized code, charge the
 			// associated costs.
 			contractAddr := contract.Address()