diff --git a/libraries/transformations/TEMPLATE b/libraries/transformations/TEMPLATE
index 992556592..4afdac04d 100644
--- a/libraries/transformations/TEMPLATE
+++ b/libraries/transformations/TEMPLATE
@@ -8,7 +8,7 @@
  *
  * For instructions, read the libraries/transformations/README file.
  *
- * The string ENTER_FILENAME_HERE shall be substituded with the filename without the '.inc.php3'
+ * The string ENTER_FILENAME_HERE shall be substituted with the filename without the '.inc.php3'
  * extension. For further information regarding naming conventions see the README file.
  */