diff --git a/src/sonymn.cpp b/src/sonymn.cpp
index ec434a9b..d88f5216 100644
--- a/src/sonymn.cpp
+++ b/src/sonymn.cpp
@@ -193,9 +193,9 @@ namespace Exiv2 {
 
     //! Lookup table to translate Sony AF illuminator values to readable labels
     extern const TagDetails sonyAFIlluminator[] = {
-        { 0, N_("Off") },
-        { 1, N_("On")  },
-        { 2, N_("n/a") }
+        { 0,     N_("Off") },
+        { 1,     N_("On")  },
+        { 65535, N_("n/a") }
     };
 
     //! Lookup table to translate Sony macro mode values to readable labels