diff --git a/src/nikonmn_int.cpp b/src/nikonmn_int.cpp
index 1cde88e3..0d212fb8 100644
--- a/src/nikonmn_int.cpp
+++ b/src/nikonmn_int.cpp
@@ -2537,6 +2537,8 @@ fmountlens[] = {
 //  https://github.com/Exiv2/exiv2/issues/598 , https://github.com/Exiv2/exiv2/pull/891
 {0xCF,0x47,0x5C,0x8E,0x31,0x3D,0xDF,0x0E,0x00,0x00,0x00, "Tamron", "A030", "SP 70-300mm F/4-5.6 Di VC USD"},
 //
+{0xf4,0x4c,0x7c,0x7c,0x2c,0x2c,0x4b,0x02,0x00,0x00,0x00, "Sigma", "", "APO MACRO 180mm F3.5 EX DG"},
+//
 {0,0,0,0,0,0,0,0,0,0,0, NULL, NULL, NULL}
 };
 //------------------------------------------------------------------------------
diff --git a/test/data/Sigma_APO_MACRO_180_F3.5_EX_DG.exv b/test/data/Sigma_APO_MACRO_180_F3.5_EX_DG.exv
new file mode 100644
index 00000000..fa024456
Binary files /dev/null and b/test/data/Sigma_APO_MACRO_180_F3.5_EX_DG.exv differ
diff --git a/tests/bugfixes/github/test_pr_992.py b/tests/bugfixes/github/test_pr_992.py
new file mode 100644
index 00000000..02230cfe
--- /dev/null
+++ b/tests/bugfixes/github/test_pr_992.py
@@ -0,0 +1,15 @@
+# -*- coding: utf-8 -*-
+
+import system_tests
+
+class NikonSigmaLens_APO_MACRO_180_F35_EX_DG(metaclass=system_tests.CaseMeta):
+    url = "https://github.com/Exiv2/exiv2/pull/992"
+    
+    filename = "$data_path/Sigma_APO_MACRO_180_F3.5_EX_DG.exv" 
+    commands = ["$exiv2 -pa --grep lensid/i $filename"]
+    stderr = [""]
+    stdout = [""
+        """Exif.NikonLd3.LensIDNumber                   Byte        1  Sigma APO MACRO 180mm F3.5 EX DG
+"""
+]
+    retval = [0]