diff --git a/Modules/MIP_FILES.pck b/Modules/MIP_FILES.pck
index bb9bb36..eb78f81 100644
--- a/Modules/MIP_FILES.pck
+++ b/Modules/MIP_FILES.pck
@@ -51,6 +51,8 @@ create or replace package body MIP_FILES as
     CLOSE c_file_exists;
     if l_file_exists is not null and l_file_exists>0 then
       return true;
+    else
+      return false;  
     end if;
   end drawing_file_exists;
   /*
@@ -83,7 +85,7 @@ create or replace package body MIP_FILES as
       returning id into l_doc_id;
       --set up a role for the document
       update document_roles set docu_id = l_doc_id    
-      where drwg_code = p_drwg_code or qute_id = p_qute_id or enqu_id = p_enqu_id;     
+      where drwg_code = nvl(p_drwg_code,'') or qute_id = nvl(p_qute_id,0) or enqu_id = nvl(p_enqu_id,0);     
       --if it works then return true
       return true;
   end update_file_association;