diff --git a/src/canonmn.cpp b/src/canonmn.cpp
index 80dc37aa..538a7db6 100644
--- a/src/canonmn.cpp
+++ b/src/canonmn.cpp
@@ -750,6 +750,7 @@ namespace Exiv2 {
         { 174, "Canon EF 135mm f/2L"                                        }, // 0
         { 174, "Sigma 70-200mm f/2.8 EX DG APO OS HSM"                      }, // 1
         { 174, "Sigma 50-500mm f/4.5-6.3 APO DG OS HSM"                     }, // 2
+        { 174, "Sigma 150-500mm f/5-6.3 APO DG OS HSM"                      }, // 3
         { 175, "Canon EF 400mm f/2.8L"                                      },
         { 176, "Canon EF 24-85mm f/3.5-4.5 USM"                             },
         { 177, "Canon EF 300mm f/4L IS"                                     },