diff --git a/islandora.module b/islandora.module
index 9b2aa3ec..56161b69 100644
--- a/islandora.module
+++ b/islandora.module
@@ -58,10 +58,11 @@ define('ISLANDORA_DATASTREAM_INGESTED_HOOK', 'islandora_datastream_ingested');
 define('ISLANDORA_DATASTREAM_MODIFIED_HOOK', 'islandora_datastream_modified');
 define('ISLANDORA_DATASTREAM_PURGED_HOOK', 'islandora_datastream_purged');
 define('ISLANDORA_INGEST_STEP_HOOK', 'islandora_ingest_steps');
+define('ISLANDORA_DERIVATIVE_CREATION_HOOK', 'islandora_derivative');
 // ISLANDORA_DERVIATIVE_CREATION_HOOK is deprecated. Should be removed
 // as of 7.x-1.5.
-define('ISLANDORA_DERVIATIVE_CREATION_HOOK', 'islandora_derivative');
-define('ISLANDORA_DERIVATIVE_CREATION_HOOK', 'islandora_derivative');
+define('ISLANDORA_DERVIATIVE_CREATION_HOOK', 'ISLANDORA_DERIVATIVE_CREATION_HOOK');
+
 
 // Autocomplete paths.
 define('ISLANDORA_CONTENT_MODELS_AUTOCOMPLETE', 'islandora/autocomplete/content-models');