diff --git a/etc/profile.d/kde.csh b/etc/profile.d/kde.csh
index 7bf762f..1015efe 100755
--- a/etc/profile.d/kde.csh
+++ b/etc/profile.d/kde.csh
@@ -3,9 +3,11 @@
 if ( ! $?KDEDIRS ) setenv KDEDIRS /usr
 
 ## When/if using prelinking, avoids use of kdeinit
-if ( ! $?KDE_IS_PRELINKED ) then
-  grep -qs -qs '^PRELINKING=yes' /etc/sysconfig/prelink && \
-  setenv KDE_IS_PRELINKED 1
+if ( ! $?KDE_IS_PRELINKED && -f /etc/sysconfig/prelink ) then
+  set prelink=`grep 'PRELINKING=' /etc/sysconfig/prelink | sed -e 's/.*=//'`
+  if ( X$prelink == Xyes ) then
+    setenv KDE_IS_PRELINKED 1
+  endif
 endif
 
 ## adjust QT_PLUGIN_PATH