diff --git a/src/java/main/esg/search/query/impl/solr/SolrUrlBuilder.java b/src/java/main/esg/search/query/impl/solr/SolrUrlBuilder.java
index 46c4ba48..5481a189 100644
--- a/src/java/main/esg/search/query/impl/solr/SolrUrlBuilder.java
+++ b/src/java/main/esg/search/query/impl/solr/SolrUrlBuilder.java
@@ -255,7 +255,7 @@ public String buildSelectQueryString() throws MalformedURLException, Unsupported
 		}
 		
 	    // if no text constraint -> use '*'
-        if (qs.isEmpty()) qs.add(URLEncoder.encode("*", "UTF-8"));      
+        if (qs.isEmpty()) qs.add(URLEncoder.encode("*:*", "UTF-8"));      
         
         // &facet.field=...&facet.field=...
         if (this.facets!=null) {