diff --git a/install.sh b/install.sh
index 796e9d7..4bcce56 100755
--- a/install.sh
+++ b/install.sh
@@ -31,16 +31,16 @@ install_dependencies()
     fmt_note "installing dependencies ..."
     case $(get_os_name) in
         "ubuntu"|"debian" )
-            DFS_LITE=$DFS_LITE $SUDO $DOTFILES/tools/ubuntu.sh apt-install
+            $SUDO DFS_LITE=$DFS_LITE "$DOTFILES/tools/ubuntu.sh" apt-install
             ;;
         "alpine" )
-            DFS_LITE=$DFS_LITE $SUDO $DOTFILES/tools/alpine.sh apk-add
+            $SUDO DFS_LITE=$DFS_LITE "$DOTFILES/tools/alpine.sh" apk-add
             ;;
         "macos" )
-            DFS_LITE=$DFS_LITE $SUDO $DOTFILES/tools/macos.sh brew-install
+            $SUDO DFS_LITE=$DFS_LITE "$DOTFILES/tools/macos.sh" brew-install
             ;;
         "msys" )
-            DFS_LITE=$DFS_LITE $SUDO $DOTFILES/tools/msys2.sh pacman-S
+            $SUDO DFS_LITE=$DFS_LITE "$DOTFILES/tools/msys2.sh" pacman-S
             ;;
         * ) fmt_error "dfs auto-install is not implemented on OS: $(get_os_name)"
     esac
diff --git a/tools/macos.sh b/tools/macos.sh
old mode 100644
new mode 100755
index 0edd212..ff4e566
--- a/tools/macos.sh
+++ b/tools/macos.sh
@@ -11,8 +11,8 @@ brew_install()
 router()
 {
     case $1 in
-        brew_install ) brew_install ;;
-        *            ) echo unknown command "$1". available: brew_install;;
+        brew-install ) brew_install ;;
+        *            ) echo unknown command "$1". available: brew-install;;
     esac
 }