diff --git a/scripts/99fix-opera b/scripts/99fix-opera
index b39dbb7..a2d36b6 100644
--- a/scripts/99fix-opera
+++ b/scripts/99fix-opera
@@ -1,2 +1,2 @@
-DPkg::Pre-Invoke {"stat -c %Z $(readlink -f $(which opera)) > /tmp/opera.timestamp";};
-DPkg::Post-Invoke {"if [ `stat -c %Z $(readlink -f $(which opera))` -ne `cat /tmp/opera.timestamp` ]; then /root/.scripts/fix-opera.sh; fi; rm /tmp/opera.timestamp";};
+DPkg::Pre-Invoke {"stat -c %Z $(readlink -f $(which opera)) > /tmp/opera.timestamp  2> /dev/null || echo 0 > /tmp/opera.timestamp";};
+DPkg::Post-Invoke {"set NEW_OPERA=`stat -c %Z $(readlink -f $(which opera))` || exit 0; set OLD_OPERA=`cat /tmp/opera.timestamp` || exit 0; if [ $NEW_OPERA -ne $OLD_OPERA ]; then /root/.scripts/fix-opera.sh; fi; rm -f /tmp/opera.timestamp";};