diff --git a/de_ch1/config/vufind/searchspecs.yaml b/de_ch1/config/vufind/searchspecs.yaml
index a1f0f45e11fe399d12f4e4da7998a3c127ad1b3d..fe8ce4b98bbaa66ccbd61546626e8f476b7b1e97 100644
--- a/de_ch1/config/vufind/searchspecs.yaml
+++ b/de_ch1/config/vufind/searchspecs.yaml
@@ -192,7 +192,7 @@ Author:
 ISN:
   DismaxParams:
     #- [bf , ord(publishDateSort)^10]
-    - [bf, "if(exists(query({!v='facet_avail:Local'})),10,1)^1000"]
+    - [bf, "if(exists(query({!v='facet_avail:Local'})),10,1)^10"]
   DismaxFields:
     - isbn
     - isbn_isn_mv