diff --git a/packages/addons/addon-depends/network-tools-depends/ngrep/package.mk b/packages/addons/addon-depends/network-tools-depends/ngrep/package.mk
index b9566dc3f2..00403dbbf4 100644
--- a/packages/addons/addon-depends/network-tools-depends/ngrep/package.mk
+++ b/packages/addons/addon-depends/network-tools-depends/ngrep/package.mk
@@ -10,7 +10,7 @@ PKG_URL="https://github.com/jpr5/ngrep/archive/${PKG_VERSION}.tar.gz"
 PKG_DEPENDS_TARGET="toolchain libpcap"
 PKG_LONGDESC="A tool like GNU grep applied to the network layer."
 PKG_TOOLCHAIN="autotools"
-PKG_BUILD_FLAGS="-sysroot"
+PKG_BUILD_FLAGS="-sysroot -parallel"
 
 PKG_CONFIGURE_OPTS_TARGET="--with-pcap-includes=$SYSROOT_PREFIX/usr/include \
                            --enable-ipv6 \
diff --git a/packages/addons/addon-depends/system-tools-depends/unrar/package.mk b/packages/addons/addon-depends/system-tools-depends/unrar/package.mk
index cab3be5485..b4da619010 100644
--- a/packages/addons/addon-depends/system-tools-depends/unrar/package.mk
+++ b/packages/addons/addon-depends/system-tools-depends/unrar/package.mk
@@ -10,7 +10,7 @@ PKG_URL="http://www.rarlab.com/rar/unrarsrc-${PKG_VERSION}.tar.gz"
 PKG_DEPENDS_TARGET="toolchain"
 PKG_LONGDESC="unrar extract, test and view RAR archives"
 PKG_TOOLCHAIN="manual"
-PKG_BUILD_FLAGS="+pic -sysroot"
+PKG_BUILD_FLAGS="+pic -sysroot -parallel"
 
 unpack() {
   mkdir -p $PKG_BUILD/unrar lib