diff --git a/development/MacOSX/lyxeditor b/development/MacOSX/lyxeditor
index b31687d1bf..d08cdd2cf8 100755
--- a/development/MacOSX/lyxeditor
+++ b/development/MacOSX/lyxeditor
@@ -55,7 +55,7 @@ do
 	# See if it contains a \\serverpipe entry
 	# Whether it does or not, break out of the loop because we've
 	# found the preferences file.
-	LYXPIPE=`parse_serverpipe "${PREFERENCES}"`
+	LYXPIPE=$(parse_serverpipe "${PREFERENCES}")
 	if [ -n "$LYXPIPE" -a -p "$LYXPIPE".in ]; then
 		break
 	fi
@@ -77,11 +77,11 @@ test -z "${LYXPIPE}" && {
 
 	# lyxrc.dist exists
 	# See if it contains a \\serverpipe entry
-	LYXPIPE=`parse_serverpipe "${LYXRC_DIST}"`
+	LYXPIPE=$(parse_serverpipe "${LYXRC_DIST}")
 }
 
 if [ -n "$LYXPIPE" -a -p "$LYXPIPE".in ]; then
-	file=`echo "$1" | sed 's|^/private||'`
+	file=$(echo "$1" | sed 's|^/private||')
 
 	MAC_LYXPIPE_CONTENTS="LYXCMD:macdvix:server-goto-file-row:$file $2"
 	# echo "$MAC_LYXPIPE_CONTENTS"