diff --git a/README.md b/README.md
index aaf8f89..448f55f 100644
--- a/README.md
+++ b/README.md
@@ -35,6 +35,6 @@ shows the help:
 ## Thanks
 
 - [Javi Loureiro](https://twitter.com/StaticBoardsES) who had the idea for Raspberry Pi devices and provided config files for them.
-- [OpenWRT community](https://openwrt.org/) for its great product.
+- [OpenWRT community](https://openwrt.org/) for the best embedded operating system based on the Linux kernel.
 
 
diff --git a/scripts/build.sh b/scripts/build.sh
index 92b107c..3d65955 100755
--- a/scripts/build.sh
+++ b/scripts/build.sh
@@ -27,8 +27,11 @@ cp "$OPENWRT_CONFIGS/$OPENWRT_TARGET.diff" "$OPENWRT_SRC/.config"
 ./scripts/feeds update -a 
 ./scripts/feeds install -a 
 
-PROCESSORS=$(cat /proc/cpuinfo | grep '^processor' | wc -l)
-JOBS=$(($PROCESSORS - 1))
+# available processors
+if [ -z "$JOBS" ] ; then
+	PROCESSORS=$(cat /proc/cpuinfo | grep '^processor' | wc -l)
+	JOBS=$(($PROCESSORS - 1))
+fi
 
 # compile
 time ionice -c 3 nice -n 19 make -j $JOBS V=s