diff --git a/docs/.utils/transifex_utils.py b/docs/.utils/transifex_utils.py
index 5a1b3fb44..cae3e5261 100644
--- a/docs/.utils/transifex_utils.py
+++ b/docs/.utils/transifex_utils.py
@@ -33,9 +33,12 @@ def create_transifex_config():
             if tx_slug:
                 print(f"Found file with tx_slug defined: {relative_path}, {tx_slug}")
                 f.write(f"[o:{TX_ORGANIZATION}:p:{TX_PROJECT}:r:{tx_slug}]\n")
-                f.write(
-                    f"file_filter = {''.join(relative_path.split('.')[:-2])}.<lang>.md\n"
-                )
+                if (
+                    relative_path.count(".") == 1
+                ):  # if no dots defining language (to filter out the indes.de.md etc.)
+                    f.write(
+                        f"file_filter = {os.path.splitext(relative_path)[0]}.<lang>.md\n"
+                    )
                 f.write(f"source_file = {relative_path}\n")
                 f.write(f"source_lang = {TX_SOURCE_LANG}\n")
                 f.write(f"type = {TX_TYPE}\n\n")