diff -rupN qt-creator-opensource-src-4.8.0-beta2/dist/org.qt-project.qtcreator.desktop qt-creator-opensource-src-4.8.0-beta2-new/dist/org.qt-project.qtcreator.desktop
--- qt-creator-opensource-src-4.8.0-beta2/dist/org.qt-project.qtcreator.desktop	2018-11-15 21:32:33.000000000 +0100
+++ qt-creator-opensource-src-4.8.0-beta2-new/dist/org.qt-project.qtcreator.desktop	2018-11-17 11:18:12.054492808 +0100
@@ -8,5 +8,5 @@ Icon=QtProject-qtcreator
 StartupWMClass=qtcreator
 Terminal=false
 Categories=Development;IDE;Qt;
-MimeType= text/x-c++src;text/x-c++hdr;text/x-xsrc;application/x-designer;application/vnd.qt.qmakeprofile;application/vnd.qt.xml.resource;
+MimeType=text/x-c++src;text/x-c++hdr;text/x-xsrc;application/x-designer;application/vnd.qt.qmakeprofile;application/vnd.qt.xml.resource;