diff --git a/_layouts/default.html b/_layouts/default.html
index e94c31d..495e784 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -53,28 +53,28 @@
                 <p class="switcher">
                 {% if page.lang == 'en' %}
                     {% if page.fr_url == '' %}
-                        <a href="{{ page.url | remove_first: '/en' }}">🇫🇷</a>
+                        <a href="{{ page.url | remove_first: '/en' }}"><img class="switch_flag" src="/images/flags/fr.svg" alt="flag of France"></a>
                     {% else %}
-                        <a href="{{ page.fr_url }}">🇫🇷</a>
+                        <a href="{{ page.fr_url }}"><img class="switch_flag" src="/images/flags/fr.svg" alt="flag of France"></a>
                     {% endif %}
 
-                      <a href="/de">🇩🇪</a>
+                      <a href="/de"><img class="switch_flag" src="/images/flags/at_de.svg" alt="half flag of Austria, half flag of Germany"></a>
                     </p>
                     {% include nav_en.html %}
                 {% else %}
                 {% if page.lang == 'de' %}
-                      <a href="/">🇫🇷</a>
-                      <a href="/en">🇬🇧</a>
+                      <a href="/"><img class="switch_flag" src="/images/flags/fr.svg" alt="Flagge Frankreichs"></a>
+                      <a href="/en"><img class="switch_flag" src="/images/flags/uk.svg" alt="Union Jack"></a>
                     </p>
                     {% include nav_de.html %}
                 {% else %}
                     {% if page.en_url == '' %}
-                        <a href="/en{{page.url}}">🇬🇧</a>
+                        <a href="/en{{page.url}}"><img class="switch_flag" src="/images/flags/uk.svg" alt="Union Jack"></a>
                     {% else %}
-                        <a href="{{ page.en_url }}">🇬🇧</a>
+                        <a href="{{ page.en_url }}"><img class="switch_flag" src="/images/flags/uk.svg" alt="Union Jack"></a>
                     {% endif %}
 
-                     <a href="/de">🇩🇪</a>
+                     <a href="/de"><img class="switch_flag" src="/images/flags/at_de.svg" alt="demi drapeau de l'Autriche, demi dreapeau de l'Allemagne"></a>
                      </p>
                     {% include nav_fr.html %}
                 {% endif %}
diff --git a/css/screen.scss b/css/screen.scss
index 93b8ff2..a7db287 100644
--- a/css/screen.scss
+++ b/css/screen.scss
@@ -141,6 +141,8 @@ ol.publication-list li { background: linear-gradient(0deg, rgba(2,0,36,0) 0%, #f
 .switcher { text-align: center; font-size: 2em; margin: 0.5em 0; }
 .switcher > a:hover { text-decoration: none; }
 
+.switch_flag { height: 1em; }
+
 .credits { color: $dim; }
 
 .centered_img { display: block; margin: 1em auto; }
diff --git a/images/flag.png b/images/flag.png
deleted file mode 100644
index bdf1d9c..0000000
Binary files a/images/flag.png and /dev/null differ
diff --git a/images/flag.svg b/images/flag.svg
deleted file mode 100644
index 5146f63..0000000
--- a/images/flag.svg
+++ /dev/null
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new file mode 100644
index 0000000..7c9e116
--- /dev/null
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@@ -0,0 +1,138 @@
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new file mode 100644
index 0000000..e9cad75
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diff --git a/images/flags/uk.svg b/images/flags/uk.svg
new file mode 100644
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