diff --git a/src/cg/cg4a00a.uml b/src/cg/cg4a00a.uml
index dc4fa189f..158f16fa9 100755
--- a/src/cg/cg4a00a.uml
+++ b/src/cg/cg4a00a.uml
@@ -94,7 +94,7 @@ STRING F_CAUS 3
 BEGIN
   PROMPT 2 10 "Causale di storno "
   FLAGS "UZ"
-  USE LF_CAUSALI SELECT TIPODOC="ST"
+  USE LF_CAUSALI SELECT TIPODOC=="ST"
   INPUT CODCAUS F_CAUS
   DISPLAY "Codice" CODCAUS
   DISPLAY "Descrizione@50" DESCR