diff --git a/distro-packages/Arch-Linux/PKGBUILD b/distro-packages/Arch-Linux/PKGBUILD
index 74b3893..0d5a8fc 100644
--- a/distro-packages/Arch-Linux/PKGBUILD
+++ b/distro-packages/Arch-Linux/PKGBUILD
@@ -74,8 +74,15 @@ makedepends=(
   python-installer
   python-wheel
 )
-source=("git+https://git.stormux.org/storm/cthulhu.git")
-b2sums=('SKIP')
+install=cthulhu.install
+source=(
+  "git+https://git.stormux.org/storm/cthulhu.git"
+  "cthulhu.install"
+)
+b2sums=(
+  'SKIP'
+  'SKIP'
+)
 
 prepare() {
   cd cthulhu
@@ -96,6 +103,9 @@ build() {
 package() {
   cd cthulhu
   meson install -C _build --destdir "$pkgdir"
+
+  # Remove icon cache - it will be generated by post-install hooks
+  rm -f "$pkgdir/usr/share/icons/hicolor/icon-theme.cache"
 }
 
 # vim:set sw=2 sts=-1 et:
diff --git a/distro-packages/Arch-Linux/cthulhu.install b/distro-packages/Arch-Linux/cthulhu.install
new file mode 100644
index 0000000..0fbb304
--- /dev/null
+++ b/distro-packages/Arch-Linux/cthulhu.install
@@ -0,0 +1,11 @@
+post_install() {
+  gtk-update-icon-cache -q -t -f usr/share/icons/hicolor
+}
+
+post_upgrade() {
+  post_install
+}
+
+post_remove() {
+  gtk-update-icon-cache -q -t -f usr/share/icons/hicolor
+}