diff --git a/elements/blocs_de_securite/pilz/qet_directory b/elements/blocs_de_securite/pilz/qet_directory
index 56950839d..4bb4e79fe 100644
--- a/elements/blocs_de_securite/pilz/qet_directory
+++ b/elements/blocs_de_securite/pilz/qet_directory
@@ -6,5 +6,6 @@
         <name lang="pl">Pilz</name>
         <name lang="cs">Pilz</name>
         <name lang="it">Pilz</name>
+        <name lang="C">Pilz</name>
     </names>
 </qet-directory>