diff --git a/src/server/sparql/SparqlQueriesGeneral.js b/src/server/sparql/SparqlQueriesGeneral.js
index 2b5c837c2f099bb7301f9776c5fff5793794f345..fa5d53ce979199bd25343f49bd47e4bf85e4ad63 100644
--- a/src/server/sparql/SparqlQueriesGeneral.js
+++ b/src/server/sparql/SparqlQueriesGeneral.js
@@ -93,7 +93,7 @@ export const facetValuesQuery = `
           VALUES ?facetClass { <FACET_CLASS> }
           ?instance a ?facetClass .
           FILTER NOT EXISTS {
-            ?instance <PREDICATE> ?value .
+            ?instance <PREDICATE> [] .
           }
         }
       }