diff --git a/yabs.sh b/yabs.sh
index 51c7248..dad1240 100755
--- a/yabs.sh
+++ b/yabs.sh
@@ -42,7 +42,7 @@ elif [[ $ARCH = *i?86* ]]; then
 	# host is running a 32-bit kernel
 	ARCH="x86"
 elif [[ $ARCH = *aarch* || $ARCH = *arm* ]]; then
-	KERNEL_BIT=`getconf LONG_BIT`
+	KERNEL_BIT=$(getconf LONG_BIT)
 	if [[ $KERNEL_BIT = *64* ]]; then
 		# host is running an ARM 64-bit kernel
 		ARCH="aarch64"