diff -u b/src/kdenlivesettings.kcfg b/src/kdenlivesettings.kcfg
--- b/src/kdenlivesettings.kcfg
+++ b/src/kdenlivesettings.kcfg
@@ -517,7 +517,7 @@
   <group name="env">
     <entry name="mltpath" type="Path">
       <label>Mlt framework install path.</label>
-      <default></default>
+      <default>@mlt@/share/mlt-7/profiles</default>
     </entry>
 
     <entry name="kdenliverendererpath" type="Path">
@@ -527,27 +527,27 @@
 
     <entry name="meltpath" type="Path">
       <label>Mlt melt renderer install path.</label>
-      <default></default>
+      <default>@mlt@/bin/melt</default>
     </entry>
 
     <entry name="ffmpegpath" type="Path">
       <label>FFmpeg / Libav binary path.</label>
-      <default></default>
+      <default>@ffmpeg@/bin/ffmpeg</default>
     </entry>
 
     <entry name="ffplaypath" type="Path">
       <label>FFplay / avplay binary path.</label>
-      <default></default>
+      <default>@ffmpeg@/bin/ffplay</default>
     </entry>
 
     <entry name="ffprobepath" type="Path">
       <label>FFprobe / avprobe binary path.</label>
-      <default></default>
+      <default>@ffmpeg@/bin/ffprobe</default>
     </entry>
 
     <entry name="mediainfopath" type="Path">
       <label>mediaInfo binary path.</label>
-      <default></default>
+      <default>@mediainfo@/bin/mediainfo</default>
     </entry>
 
     <entry name="processingthreads" type="Int">
@@ -657,5 +657,5 @@
     <entry name="glaxnimatePath" type="String">
       <label>Path to the Glaxnimate application.</label>
-      <default></default>
+      <default>@glaxnimate@/bin/glaxnimate</default>
     </entry>
     <entry name="nice_tasks" type="Bool">