diff --git a/network/psi/doinst.sh b/network/psi/doinst.sh
index 158d743911..c64f890d3d 100644
--- a/network/psi/doinst.sh
+++ b/network/psi/doinst.sh
@@ -4,5 +4,5 @@ fi
 
 if [ -x /usr/bin/gtk-update-icon-cache ] \
   && [ -e usr/share/icons/hicolor/icon-theme.cache ]; then
-  /usr/bin/gtk-update-icon-cache usr/share/icons/hicolor >/dev/null 2>&1
+  /usr/bin/gtk-update-icon-cache -f usr/share/icons/hicolor >/dev/null 2>&1
 fi