diff --git a/internal/era/era.go b/internal/era/era.go
index adc6e1ae1b..08fd733b80 100644
--- a/internal/era/era.go
+++ b/internal/era/era.go
@@ -18,6 +18,7 @@ package era
 
 import (
 	"encoding/binary"
+	"errors"
 	"fmt"
 	"io"
 	"math/big"