diff --git a/src/mimetypes/kde5.xml b/src/mimetypes/kde5.xml
--- a/src/mimetypes/kde5.xml
+++ b/src/mimetypes/kde5.xml
@@ -514,6 +514,72 @@
     </magic>
     <glob pattern="*.kwl"/>
   </mime-type>
+  <mime-type type="application/x-root">
+    <sub-class-of type="application/octet-stream"/>
+    <comment>ROOT</comment>
+    <comment xml:lang="ar">ROOT</comment>
+    <comment xml:lang="bg">ROOT</comment>
+    <comment xml:lang="bs">ROOT</comment>
+    <comment xml:lang="ca">ROOT</comment>
+    <comment xml:lang="ca@valencia">ROOT</comment>
+    <comment xml:lang="cs">ROOT</comment>
+    <comment xml:lang="da">ROOT</comment>
+    <comment xml:lang="de">ROOT</comment>
+    <comment xml:lang="el">ROOT</comment>
+    <comment xml:lang="en_GB">ROOT</comment>
+    <comment xml:lang="es">ROOT</comment>
+    <comment xml:lang="et">ROOT</comment>
+    <comment xml:lang="eu">ROOT</comment>
+    <comment xml:lang="fi">ROOT</comment>
+    <comment xml:lang="fr">ROOT</comment>
+    <comment xml:lang="ga">ROOT</comment>
+    <comment xml:lang="gd">ROOT</comment>
+    <comment xml:lang="gl">ROOT</comment>
+    <comment xml:lang="hr">ROOT</comment>
+    <comment xml:lang="hu">ROOT</comment>
+    <comment xml:lang="ia">ROOT</comment>
+    <comment xml:lang="id">ROOT</comment>
+    <comment xml:lang="is">ROOT</comment>
+    <comment xml:lang="it">ROOT</comment>
+    <comment xml:lang="ja">ROOT</comment>
+    <comment xml:lang="kk">ROOT</comment>
+    <comment xml:lang="km">ROOT</comment>
+    <comment xml:lang="ko">ROOT</comment>
+    <comment xml:lang="lt">ROOT</comment>
+    <comment xml:lang="lv">ROOT</comment>
+    <comment xml:lang="ml">ROOT</comment>
+    <comment xml:lang="mr">ROOT</comment>
+    <comment xml:lang="nb">ROOT</comment>
+    <comment xml:lang="nds">ROOT</comment>
+    <comment xml:lang="nl">ROOT</comment>
+    <comment xml:lang="nn">ROOT</comment>
+    <comment xml:lang="pa">ROOT</comment>
+    <comment xml:lang="pl">ROOT</comment>
+    <comment xml:lang="pt">ROOT</comment>
+    <comment xml:lang="pt_BR">ROOT</comment>
+    <comment xml:lang="ro">ROOT</comment>
+    <comment xml:lang="ru">ROOT</comment>
+    <comment xml:lang="se">ROOT</comment>
+    <comment xml:lang="sk">ROOT</comment>
+    <comment xml:lang="sl">ROOT</comment>
+    <comment xml:lang="sr">ROOT</comment>
+    <comment xml:lang="sr@ijekavian">ROOT</comment>
+    <comment xml:lang="sr@ijekavianlatin">ROOT</comment>
+    <comment xml:lang="sr@latin">ROOT</comment>
+    <comment xml:lang="sv">ROOT</comment>
+    <comment xml:lang="tg">ROOT</comment>
+    <comment xml:lang="th">ROOT</comment>
+    <comment xml:lang="tr">ROOT</comment>
+    <comment xml:lang="ug">ROOT</comment>
+    <comment xml:lang="uk">ROOT</comment>
+    <comment xml:lang="zh_CN">ROOT</comment>
+	<comment xml:lang="zh_TW">ROOT</comment>
+    <magic priority="80">
+			<match value="root" type="string" offset="0"/>
+			<match value ="TFile" type="string" offset="177"/>
+    </magic>
+    <glob pattern="*.root"/>
+  </mime-type>
   <mime-type type="application/x-kudesigner">
     <comment>Kugar report template</comment>
     <comment xml:lang="ar">قالب تقرير Kugar</comment>