diff --git a/common/elevate.sh b/common/elevate.sh
index fc8ed6a..65e8dc9 100644
--- a/common/elevate.sh
+++ b/common/elevate.sh
@@ -5,8 +5,8 @@ require_root()
 	[ $(id -u) -ne "0" ] && {
 		echo root is required
 		exe="$EXEDIR/$(basename "$0")"
-		exists sudo && exec sudo "$exe"
-		exists su && exec su root -c "$exe"
+		exists sudo && exec sudo sh "$exe"
+		exists su && exec su root -c "sh \"$exe\""
 		echo su or sudo not found
 		exitp 2
 	}
diff --git a/install_easy.sh b/install_easy.sh
index 56b5e76..6dc7669 100755
--- a/install_easy.sh
+++ b/install_easy.sh
@@ -76,6 +76,7 @@ check_bins()
 {
 	echo \* checking executables
 
+	fix_perms_bin_test "$EXEDIR"
 	local arch=$(get_bin_arch)
 	local make_target
 	[ "$FORCE_BUILD" = "1" ] && {
@@ -467,6 +468,11 @@ copy_openwrt()
 	cp "$BINDIR/tpws" "$BINDIR/nfqws" "$BINDIR/ip2net" "$BINDIR/mdig" "$2/binaries/$ARCH"
 }
 
+fix_perms_bin_test()
+{
+	[ -d "$1" ] || return
+	find "$1/binaries" -name ip2net -exec chmod +x {} \;
+}
 fix_perms()
 {
 	[ -d "$1" ] || return