diff --git a/target/toolchain/files/wrapper.sh b/target/toolchain/files/wrapper.sh
index 4452128382..bd4996cac2 100755
--- a/target/toolchain/files/wrapper.sh
+++ b/target/toolchain/files/wrapper.sh
@@ -15,10 +15,10 @@
 #
 
 PROGNAME=$0
-REALNAME=`readlink -f $0`
+REALNAME=$(readlink -f $0)
 
-REALNAME_BASE=`basename $REALNAME`
-REALNAME_DIR=`dirname $REALNAME`
+REALNAME_BASE=$(basename $REALNAME)
+REALNAME_DIR=$(dirname $REALNAME)
 
 TARGET_FUNDAMENTAL_ASFLAGS=''
 TARGET_FUNDAMENTAL_CFLAGS=''