diff --git a/workflow/engine/classes/class.AppSolr.php b/workflow/engine/classes/class.AppSolr.php
index ff2b7b88e..c5d193781 100644
--- a/workflow/engine/classes/class.AppSolr.php
+++ b/workflow/engine/classes/class.AppSolr.php
@@ -728,7 +728,7 @@ class AppSolr
       $searchText = strstr ($tok, ":");
       
       // verify if there's a field definition
-      if ($fieldName === false) {
+      if ($fieldName === false || $fieldName == "") {
         // it's not a field
         // the token is not a field
         // add it completelly