diff --git a/build/debian/build.sh b/build/debian/build.sh
index ae4c125..3cbc9ac 100755
--- a/build/debian/build.sh
+++ b/build/debian/build.sh
@@ -29,7 +29,7 @@ EOF
 
 # dpkg-deb
 find ./debian -type d | xargs chmod 755
-dpkg-deb --build debian
+fakeroot dpkg-deb --build debian
 mv debian.deb zjunet_${VERSION}_all.deb
 
 # remove debian/
diff --git a/build/openwrt/build.sh b/build/openwrt/build.sh
index 6bedd92..0020d1c 100755
--- a/build/openwrt/build.sh
+++ b/build/openwrt/build.sh
@@ -29,7 +29,7 @@ EOF
 
 # dpkg-deb
 find ./debian -type d | xargs chmod 755
-dpkg-deb -Zgzip --build debian # for opkg
+fakeroot dpkg-deb -Zgzip --build debian # for opkg
 mv debian.deb zjunet_${VERSION}_all.opk
 
 # remove debian/