--- a/ExternalLong.st	Sun Sep 08 15:30:23 2019 +0200
+++ b/ExternalLong.st	Sun Sep 08 15:33:06 2019 +0200
@@ -137,8 +137,8 @@
     |result|
 
     result := self unsignedInt16At:1 MSB:false.
-    result = 0 ifTrue:[ ^ #SQL_NO_NULLS ].
-    result = 1 ifTrue:[ ^ #SQL_NULLABLE ].
+    result == 0 ifTrue:[ ^ #SQL_NO_NULLS ].
+    result == 1 ifTrue:[ ^ #SQL_NULLABLE ].
     ^ #SQL_NULLABLE_UNKNOWN
 !