diff --git a/sftp/kio_sftp.cpp b/sftp/kio_sftp.cpp
--- a/sftp/kio_sftp.cpp
+++ b/sftp/kio_sftp.cpp
@@ -493,7 +493,13 @@
 
         entry.fastInsert(KIO::UDSEntry::UDS_ACCESS_TIME, sb->atime);
         entry.fastInsert(KIO::UDSEntry::UDS_MODIFICATION_TIME, sb->mtime);
-        entry.fastInsert(KIO::UDSEntry::UDS_CREATION_TIME, sb->createtime);
+        if (sb->createtime != 0) {
+            // Birth time may be unknown if the underlying file system doesn't
+            // track it (e.g. btrfs, ext4). In that event do not report 1970
+            // as creation time but do not set UDS_CREATION_TIME.
+            // https://bugs.kde.org/show_bug.cgi?id=375305
+            entry.fastInsert(KIO::UDSEntry::UDS_CREATION_TIME, sb->createtime);
+        }
     }
 
     sftp_attributes_free(sb);