diff --git a/util/install_deps_ubuntu.sh b/util/install_deps_ubuntu.sh
index 4b3200ca257..1f47dd2882a 100755
--- a/util/install_deps_ubuntu.sh
+++ b/util/install_deps_ubuntu.sh
@@ -34,6 +34,9 @@ deps=(
     libudev-dev
     autoconf
     libtool
+    # cpp/apps/Open3DViewer/postinstall-linux.sh
+    desktop-file-utils
+    gtk-update-icon-cache
 )
 
 if [[ "$FILAMENT_DEPS" ]]; then     # Filament build-from-source