diff --git a/node/pkg/chain/utils/utils.go b/node/pkg/chain/utils/utils.go
index 7cfcb9448..1c1c59bda 100644
--- a/node/pkg/chain/utils/utils.go
+++ b/node/pkg/chain/utils/utils.go
@@ -626,7 +626,9 @@ func RecoverSigner(hash []byte, signature []byte) (address common.Address, err e
 	// use copy to avoid modifying the original signature
 	signatureCopy := make([]byte, len(signature))
 	copy(signatureCopy, signature)
-	signatureCopy[64] -= 27
+	if signatureCopy[64] == 27 || signatureCopy[64] == 28 {
+		signatureCopy[64] -= 27
+	}
 
 	pubKey, err := crypto.SigToPub(hash, signatureCopy)
 	if err != nil {
diff --git a/node/pkg/dal/collector/utils.go b/node/pkg/dal/collector/utils.go
index bdc2575e3..c0d653fcf 100644
--- a/node/pkg/dal/collector/utils.go
+++ b/node/pkg/dal/collector/utils.go
@@ -114,7 +114,7 @@ func removeDuplicateProof(proof []byte) []byte {
 		uniqueProofs[string(p)] = p
 	}
 
-	result := make([][]byte, 0, len(uniqueProofs)*65)
+	result := make([][]byte, 0, len(uniqueProofs))
 	for _, p := range uniqueProofs {
 		result = append(result, p)
 	}