diff --git a/pkg/backup/main.go b/pkg/backup/main.go
index ff5d95962..531353536 100644
--- a/pkg/backup/main.go
+++ b/pkg/backup/main.go
@@ -49,7 +49,7 @@ func ResponseLogAndError(v interface{}) {
 		e, isErr := v.(error)
 		_, isRuntimeErr := e.(runtime.Error)
 		if isErr && !isRuntimeErr {
-			logrus.Errorf(fmt.Sprint(e))
+			logrus.Errorf("%v", e)
 			fmt.Println(fmt.Sprint(e))
 		} else {
 			logrus.Errorf("Caught FATAL error: %s", v)
diff --git a/pkg/replica/diff_disk.go b/pkg/replica/diff_disk.go
index 4be04ff13..1406dfb19 100644
--- a/pkg/replica/diff_disk.go
+++ b/pkg/replica/diff_disk.go
@@ -271,7 +271,7 @@ func (d *diffDisk) lookup(sector int64) (byte, error) {
 		for i := len(d.files) - 1; i > 1; i-- {
 			e, errno := fibmap.Fiemap(d.files[i].Fd(), uint64(sector*d.sectorSize), uint64(d.sectorSize), 1)
 			if errno != 0 {
-				return 0, fmt.Errorf(errno.Error())
+				return 0, fmt.Errorf("%v", errno)
 			}
 			if len(e) > 0 {
 				d.location[sector] = byte(i)
diff --git a/pkg/replica/rpc/server.go b/pkg/replica/rpc/server.go
index 5b3f87642..67bf58c28 100644
--- a/pkg/replica/rpc/server.go
+++ b/pkg/replica/rpc/server.go
@@ -188,7 +188,7 @@ func (rs *ReplicaServer) ReplicaExpand(ctx context.Context, req *enginerpc.Repli
 			errWithCode = types.NewError(types.ErrorCodeFunctionFailedWithoutRollback,
 				err.Error(), "")
 		}
-		return nil, status.Errorf(codes.Internal, errWithCode.ToJSONString())
+		return nil, status.Errorf(codes.Internal, "%s", errWithCode.ToJSONString())
 	}
 
 	return &enginerpc.ReplicaExpandResponse{Replica: rs.getReplica()}, nil