diff --git a/scripts/qemu-binfmt-conf.sh b/scripts/qemu-binfmt-conf.sh
index 0f1aa63872..8afc3eb5bb 100755
--- a/scripts/qemu-binfmt-conf.sh
+++ b/scripts/qemu-binfmt-conf.sh
@@ -284,12 +284,12 @@ while true ; do
         shift
         # check given cpu is in the supported CPU list
         for cpu in ${qemu_target_list} ; do
-            if [ "$cpu" == "$1" ] ; then
+            if [ "$cpu" = "$1" ] ; then
                 break
             fi
         done
 
-        if [ "$cpu" == "$1" ] ; then
+        if [ "$cpu" = "$1" ] ; then
             qemu_target_list="$1"
         else
             echo "ERROR: unknown CPU \"$1\"" 1>&2