diff --git a/pkg/brpb/brpb.pb.go b/pkg/brpb/brpb.pb.go
index 58297ca66..0985793fe 100644
--- a/pkg/brpb/brpb.pb.go
+++ b/pkg/brpb/brpb.pb.go
@@ -3814,7 +3814,7 @@ func (m *DataFileGroup) GetLength() uint64 {
 }
 
 type DataFileInfo struct {
-	// Logical checksum of all the kv pairs in the file.
+	// Checksum of the plaintext file, i.e., pre-compression, pre-encryption.
 	Sha256 []byte `protobuf:"bytes,1,opt,name=sha256,proto3" json:"sha256,omitempty"`
 	// Path of the file.
 	Path            string `protobuf:"bytes,2,opt,name=path,proto3" json:"path,omitempty"`
diff --git a/proto/brpb.proto b/proto/brpb.proto
index a787c1aae..9db2fd74c 100644
--- a/proto/brpb.proto
+++ b/proto/brpb.proto
@@ -673,7 +673,7 @@ message DataFileGroup {
 }
 
 message DataFileInfo {
-    // Logical checksum of all the kv pairs in the file.
+    // Checksum of the plaintext file, i.e., pre-compression, pre-encryption.
     bytes sha256 = 1;
     // Path of the file.
     string path = 2;