diff --git a/src/Jackett.Common/Definitions/siambit.yml b/src/Jackett.Common/Definitions/siambit.yml
index 24b457295..40f642dc7 100644
--- a/src/Jackett.Common/Definitions/siambit.yml
+++ b/src/Jackett.Common/Definitions/siambit.yml
@@ -65,6 +65,7 @@ caps:
     tv-search: [q, season, ep]
     movie-search: [q]
     music-search: [q]
+    book-search: [q]
 
 settings:
   - name: username