diff --git a/src/html.cc b/src/html.cc
index b7c0f1f..b6992fc 100644
--- a/src/html.cc
+++ b/src/html.cc
@@ -473,7 +473,7 @@ DilloHtml::DilloHtml(BrowserWindow *p_bw, const DilloUrl *url,
    DocType = DT_NONE;    /* assume Tag Soup 0.0!   :-) */
    DocTypeVersion = 0.0f;
 
-   styleEngine = new StyleEngine (HT2LT (this), page_url, base_url, bw->zoom);
+   styleEngine = std::make_unique< StyleEngine >(HT2LT (this), page_url, base_url, bw->zoom);
 
    cssUrls = new misc::SimpleVector <DilloUrl*> (1);
 
@@ -578,8 +578,6 @@ DilloHtml::~DilloHtml()
       dFree(img);
    }
    delete (images);
-
-   delete styleEngine;
 }
 
 /**
diff --git a/src/html_common.hh b/src/html_common.hh
index 0c36efc..85f1850 100644
--- a/src/html_common.hh
+++ b/src/html_common.hh
@@ -188,7 +188,7 @@ public:  //BUG: for now everything is public
    lout::misc::SimpleVector<DilloUrl*> *cssUrls;
 
    lout::misc::SimpleVector<DilloHtmlState> *stack;
-   StyleEngine *styleEngine;
+   std::unique_ptr< StyleEngine > styleEngine;
 
    int InFlags; /**< tracks which elements we are in */