diff --git a/src/common/translation.cpp b/src/common/translation.cpp
index 3aa38fc675..1e89106f9a 100644
--- a/src/common/translation.cpp
+++ b/src/common/translation.cpp
@@ -1485,7 +1485,7 @@ const wxString& wxTranslations::GetString(const wxString& origString,
             TRACE_I18N,
             "string \"%s\"%s not found in %slocale '%s'.",
             origString,
-            ((long)n) != -1 ? wxString::Format("[%ld]", (long)n) : wxString(),
+            n != UINT_MAX ? wxString::Format("[%ld]", (long)n) : wxString(),
             !domain.empty() ? wxString::Format("domain '%s' ", domain) : wxString(),
             m_lang
         );