diff --git a/mac_installer/make_certificate_updater.sh b/mac_installer/make_certificate_updater.sh
index 45f988219d..c6d0736743 100755
--- a/mac_installer/make_certificate_updater.sh
+++ b/mac_installer/make_certificate_updater.sh
@@ -48,7 +48,7 @@ ENDOFFILE
 cp -f "/tmp/pkg_scripts/postinstall" "/tmp/pkg_scripts/postupgrade"
 
 rm -fR "../BOINC_Installer/upate_boinc_certificate.pkg"
-/Developer/usr/bin/packagemaker -r "/tmp/pkg_root/" -s "/tmp/pkg_scripts/" -i ".edu.berkeley.boinc-cert-updater.pkg" -o "../BOINC_Installer/upate_boinc_certificate.pkg" -g 10.3 -b -w
+/Developer/usr/bin/packagemaker -r "/tmp/pkg_root/" -s "/tmp/pkg_scripts/" -i ".edu.berkeley.boinc-cert-updater.pkg" -o "../BOINC_Installer/update_boinc_certificate.pkg" -g 10.3 -b -w
 
 rm -fR /tmp/pkg_root
 rm -fR /tmp/pkg_scripts