diff --git a/release/amd64/make-memstick.sh b/release/amd64/make-memstick.sh
index 2acecb5ee4be..e10b892eeb29 100755
--- a/release/amd64/make-memstick.sh
+++ b/release/amd64/make-memstick.sh
@@ -14,32 +14,32 @@ PATH=/bin:/usr/bin:/sbin:/usr/sbin
 export PATH
 
 if [ $# -ne 2 ]; then
-  echo "make-memstick.sh /path/to/directory /path/to/image/file"
-  exit 1
+	echo "make-memstick.sh /path/to/directory /path/to/image/file"
+	exit 1
 fi
 
 if [ ! -d ${1} ]; then
-  echo "${1} must be a directory"
-  exit 1
+	echo "${1} must be a directory"
+	exit 1
 fi
 
 if [ -e ${2} ]; then
-  echo "won't overwrite ${2}"
-  exit 1
+	echo "won't overwrite ${2}"
+	exit 1
 fi
 
 echo '/dev/ufs/FreeBSD_Install / ufs ro,noatime 1 1' > ${1}/etc/fstab
 makefs -B little -o label=FreeBSD_Install ${2} ${1}
 if [ $? -ne 0 ]; then
-  echo "makefs failed"
-  exit 1
+	echo "makefs failed"
+	exit 1
 fi
 rm ${1}/etc/fstab
 
-unit=`mdconfig -a -t vnode -f ${2}`
+unit=$(mdconfig -a -t vnode -f ${2})
 if [ $? -ne 0 ]; then
-  echo "mdconfig failed"
-  exit 1
+	echo "mdconfig failed"
+	exit 1
 fi
 gpart create -s BSD ${unit}
 gpart bootcode -b ${1}/boot/boot ${unit}
diff --git a/release/i386/make-memstick.sh b/release/i386/make-memstick.sh
index 2acecb5ee4be..e10b892eeb29 100755
--- a/release/i386/make-memstick.sh
+++ b/release/i386/make-memstick.sh
@@ -14,32 +14,32 @@ PATH=/bin:/usr/bin:/sbin:/usr/sbin
 export PATH
 
 if [ $# -ne 2 ]; then
-  echo "make-memstick.sh /path/to/directory /path/to/image/file"
-  exit 1
+	echo "make-memstick.sh /path/to/directory /path/to/image/file"
+	exit 1
 fi
 
 if [ ! -d ${1} ]; then
-  echo "${1} must be a directory"
-  exit 1
+	echo "${1} must be a directory"
+	exit 1
 fi
 
 if [ -e ${2} ]; then
-  echo "won't overwrite ${2}"
-  exit 1
+	echo "won't overwrite ${2}"
+	exit 1
 fi
 
 echo '/dev/ufs/FreeBSD_Install / ufs ro,noatime 1 1' > ${1}/etc/fstab
 makefs -B little -o label=FreeBSD_Install ${2} ${1}
 if [ $? -ne 0 ]; then
-  echo "makefs failed"
-  exit 1
+	echo "makefs failed"
+	exit 1
 fi
 rm ${1}/etc/fstab
 
-unit=`mdconfig -a -t vnode -f ${2}`
+unit=$(mdconfig -a -t vnode -f ${2})
 if [ $? -ne 0 ]; then
-  echo "mdconfig failed"
-  exit 1
+	echo "mdconfig failed"
+	exit 1
 fi
 gpart create -s BSD ${unit}
 gpart bootcode -b ${1}/boot/boot ${unit}