diff --git a/include/wx/afterstd.h b/include/wx/afterstd.h
index 5d3858cae8..6fdbb315b3 100644
--- a/include/wx/afterstd.h
+++ b/include/wx/afterstd.h
@@ -33,6 +33,9 @@
         // 'expression' : signed/unsigned mismatch
         #pragma warning(default:4018)
 
+        // 'identifier' : unreferenced formal parameter
+        #pragma warning(default:4100)
+
         // 'conversion' : conversion from 'type1' to 'type2',
         // possible loss of data
         #pragma warning(default:4244)
diff --git a/include/wx/beforestd.h b/include/wx/beforestd.h
index 945296dde1..684b8428c3 100644
--- a/include/wx/beforestd.h
+++ b/include/wx/beforestd.h
@@ -37,6 +37,9 @@
         // 'expression' : signed/unsigned mismatch
         #pragma warning(disable:4018)
 
+        // 'identifier' : unreferenced formal parameter
+        #pragma warning(disable:4100)
+
         // 'conversion' : conversion from 'type1' to 'type2',
         // possible loss of data
         #pragma warning(disable:4244)