diff --git a/usr/bin/portproton-session-select b/usr/bin/portproton-session-select
index 1f72d35..484e3ba 100755
--- a/usr/bin/portproton-session-select
+++ b/usr/bin/portproton-session-select
@@ -66,8 +66,11 @@ if [[ -z $SENTINEL_CREATED ]]; then
   export SENTINEL_CREATED=1
 fi
 
-if [[ $(grep -E '^X-KDE-PluginInfo-Version=' /usr/share/xsessions/plasmax11.desktop | cut -d'=' -f2) =~ 6.* ]] ; then
-  KDE6="true"
+if [[ -f /usr/share/xsessions/plasmax11.desktop ]]; then
+  version=$(grep -E '^X-KDE-PluginInfo-Version=' /usr/share/xsessions/plasmax11.desktop | cut -d'=' -f2)
+  if [[ $version =~ ^6.* ]]; then
+    KDE6="true"
+  fi
 fi
 
 case "$session" in