diff --git a/src/chrome/content/rules/swiss-prime-site.ch.xml b/src/chrome/content/rules/swiss-prime-site.ch.xml
new file mode 100644
index 000000000000..dadb9ab3b908
--- /dev/null
+++ b/src/chrome/content/rules/swiss-prime-site.ch.xml
@@ -0,0 +1,7 @@
+<ruleset name="swiss-prime-site.ch">
+	<target host="swiss-prime-site.ch" />
+	<target host="www.swiss-prime-site.ch" />
+
+	<rule from="^http:"
+		to="https:" />
+</ruleset>