diff --git a/apps/files_external/lib/backend/amazons3.php b/apps/files_external/lib/Lib/Backend/AmazonS3.php
similarity index 100%
rename from apps/files_external/lib/backend/amazons3.php
rename to apps/files_external/lib/Lib/Backend/AmazonS3.php
diff --git a/apps/files_external/lib/backend/backend.php b/apps/files_external/lib/Lib/Backend/Backend.php
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rename from apps/files_external/lib/backend/backend.php
rename to apps/files_external/lib/Lib/Backend/Backend.php
diff --git a/apps/files_external/lib/backend/dav.php b/apps/files_external/lib/Lib/Backend/DAV.php
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rename from apps/files_external/lib/backend/dav.php
rename to apps/files_external/lib/Lib/Backend/DAV.php
diff --git a/apps/files_external/lib/backend/dropbox.php b/apps/files_external/lib/Lib/Backend/Dropbox.php
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rename from apps/files_external/lib/backend/dropbox.php
rename to apps/files_external/lib/Lib/Backend/Dropbox.php
diff --git a/apps/files_external/lib/backend/ftp.php b/apps/files_external/lib/Lib/Backend/FTP.php
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rename from apps/files_external/lib/backend/ftp.php
rename to apps/files_external/lib/Lib/Backend/FTP.php
diff --git a/apps/files_external/lib/backend/google.php b/apps/files_external/lib/Lib/Backend/Google.php
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rename from apps/files_external/lib/backend/google.php
rename to apps/files_external/lib/Lib/Backend/Google.php
diff --git a/apps/files_external/lib/backend/legacybackend.php b/apps/files_external/lib/Lib/Backend/LegacyBackend.php
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rename from apps/files_external/lib/backend/legacybackend.php
rename to apps/files_external/lib/Lib/Backend/LegacyBackend.php
diff --git a/apps/files_external/lib/backend/local.php b/apps/files_external/lib/Lib/Backend/Local.php
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rename from apps/files_external/lib/backend/local.php
rename to apps/files_external/lib/Lib/Backend/Local.php
diff --git a/apps/files_external/lib/backend/owncloud.php b/apps/files_external/lib/Lib/Backend/OwnCloud.php
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rename from apps/files_external/lib/backend/owncloud.php
rename to apps/files_external/lib/Lib/Backend/OwnCloud.php
diff --git a/apps/files_external/lib/backend/sftp.php b/apps/files_external/lib/Lib/Backend/SFTP.php
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rename from apps/files_external/lib/backend/sftp.php
rename to apps/files_external/lib/Lib/Backend/SFTP.php
diff --git a/apps/files_external/lib/backend/sftp_key.php b/apps/files_external/lib/Lib/Backend/SFTP_Key.php
similarity index 100%
rename from apps/files_external/lib/backend/sftp_key.php
rename to apps/files_external/lib/Lib/Backend/SFTP_Key.php
diff --git a/apps/files_external/lib/backend/smb.php b/apps/files_external/lib/Lib/Backend/SMB.php
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rename from apps/files_external/lib/backend/smb.php
rename to apps/files_external/lib/Lib/Backend/SMB.php
diff --git a/apps/files_external/lib/backend/smb_oc.php b/apps/files_external/lib/Lib/Backend/SMB_OC.php
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rename from apps/files_external/lib/backend/smb_oc.php
rename to apps/files_external/lib/Lib/Backend/SMB_OC.php
diff --git a/apps/files_external/lib/backend/swift.php b/apps/files_external/lib/Lib/Backend/Swift.php
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rename from apps/files_external/lib/backend/swift.php
rename to apps/files_external/lib/Lib/Backend/Swift.php
diff --git a/apps/files_external/tests/backend/backendtest.php b/apps/files_external/tests/Backend/BackendTest.php
similarity index 100%
rename from apps/files_external/tests/backend/backendtest.php
rename to apps/files_external/tests/Backend/BackendTest.php
diff --git a/apps/files_external/tests/backend/legacybackendtest.php b/apps/files_external/tests/Backend/LegacyBackendTest.php
similarity index 100%
rename from apps/files_external/tests/backend/legacybackendtest.php
rename to apps/files_external/tests/Backend/LegacyBackendTest.php