diff --git a/libqpdf/ContentNormalizer.cc b/libqpdf/ContentNormalizer.cc
index a092f02..6ec6cf9 100644
--- a/libqpdf/ContentNormalizer.cc
+++ b/libqpdf/ContentNormalizer.cc
@@ -71,15 +71,3 @@ ContentNormalizer::handleToken(QPDFTokenizer::Token const& token)
         write("\n");
     }
 }
-
-bool
-ContentNormalizer::anyBadTokens() const
-{
-    return this->any_bad_tokens;
-}
-
-bool
-ContentNormalizer::lastTokenWasBad() const
-{
-    return this->last_token_was_bad;
-}
diff --git a/libqpdf/qpdf/ContentNormalizer.hh b/libqpdf/qpdf/ContentNormalizer.hh
index d423aa4..930cf14 100644
--- a/libqpdf/qpdf/ContentNormalizer.hh
+++ b/libqpdf/qpdf/ContentNormalizer.hh
@@ -3,15 +3,23 @@
 
 #include <qpdf/QPDFObjectHandle.hh>
 
-class ContentNormalizer: public QPDFObjectHandle::TokenFilter
+class ContentNormalizer final: public QPDFObjectHandle::TokenFilter
 {
   public:
     ContentNormalizer();
-    ~ContentNormalizer() override = default;
-    void handleToken(QPDFTokenizer::Token const&) override;
+    ~ContentNormalizer() final = default;
+    void handleToken(QPDFTokenizer::Token const&) final;
 
-    bool anyBadTokens() const;
-    bool lastTokenWasBad() const;
+    bool
+    anyBadTokens() const
+    {
+        return any_bad_tokens;
+    }
+    bool
+    lastTokenWasBad() const
+    {
+        return last_token_was_bad;
+    }
 
   private:
     bool any_bad_tokens;