diff --git a/include/wx/strvararg.h b/include/wx/strvararg.h
index 2aab05e478..6ad650be85 100644
--- a/include/wx/strvararg.h
+++ b/include/wx/strvararg.h
@@ -161,6 +161,23 @@ struct wxArgNormalizer<wchar_t*> : public wxArgNormalizer<const wchar_t*>
 
 #endif // wxUSE_UNICODE_WCHAR / !wxUSE_UNICODE_WCHAR && wxUSE_WCHAR_T
 
+// versions for passing wx[W]CharBuffer:
+template<>
+struct WXDLLIMPEXP_BASE wxArgNormalizer<wxCharBuffer>
+            : public wxArgNormalizer<const char*>
+{
+    wxArgNormalizer(const wxCharBuffer& buf);
+};
+
+template<>
+struct WXDLLIMPEXP_BASE wxArgNormalizer<wxWCharBuffer>
+            : public wxArgNormalizer<const wchar_t*>
+{
+    wxArgNormalizer(const wxWCharBuffer& buf);
+};
+
+
+
 // NB: The vararg emulation code is limited to 30 arguments at the moment.
 //     If you need more, you need to
 //        1) increase the value of _WX_VARARG_MAX_ARGS
diff --git a/src/common/strvararg.cpp b/src/common/strvararg.cpp
index 00e30cbf84..5e7955dd1e 100644
--- a/src/common/strvararg.cpp
+++ b/src/common/strvararg.cpp
@@ -77,3 +77,16 @@ const char *wxArgNormalizer<const wchar_t*>::get() const
 }
 
 #endif // wxUSE_UNICODE_WCHAR / !wxUSE_UNICODE_WCHAR && wxUSE_WCHAR_T
+
+// FIXME-UTF8: move this to the header once it's possible to include buffer.h
+//             without including wxcrt.h
+
+wxArgNormalizer<wxCharBuffer>::wxArgNormalizer(const wxCharBuffer& buf)
+    : wxArgNormalizer<const char*>(buf.data())
+{
+}
+
+wxArgNormalizer<wxWCharBuffer>::wxArgNormalizer(const wxWCharBuffer& buf)
+    : wxArgNormalizer<const wchar_t*>(buf.data())
+{
+}
diff --git a/tests/strings/vararg.cpp b/tests/strings/vararg.cpp
index 6d902384a5..52fdcfec60 100644
--- a/tests/strings/vararg.cpp
+++ b/tests/strings/vararg.cpp
@@ -53,15 +53,26 @@ void VarArgTestCase::StringPrintf()
 {
     wxString s, s2;
 
+    // test passing literals:
     s.Printf("%s %i", "foo", 42);
     CPPUNIT_ASSERT( s == "foo 42" );
     s.Printf("%s %s %i", _T("bar"), "=", 11);
+
+    // test passing c_str():
     CPPUNIT_ASSERT( s == "bar = 11" );
     s2.Printf("(%s)", s.c_str());
     CPPUNIT_ASSERT( s2 == "(bar = 11)" );
     s2.Printf(_T("[%s](%s)"), s.c_str(), "str");
     CPPUNIT_ASSERT( s2 == "[bar = 11](str)" );
 
+    // test passing wxString directly:
     s2.Printf(_T("[%s](%s)"), s, "str");
     CPPUNIT_ASSERT( s2 == "[bar = 11](str)" );
+
+    // test passing wxCharBufferType<T>:
+    s = "FooBar";
+    s2.Printf(_T("(%s)"), s.mb_str());
+    CPPUNIT_ASSERT( s2 == "(FooBar)" );
+    s2.Printf(_T("value=%s;"), s.wc_str());
+    CPPUNIT_ASSERT( s2 == "value=FooBar;" );
 }