diff --git a/etc/check_package.sed b/etc/check_package.sed
index 2ecd1af..135bc17 100644
--- a/etc/check_package.sed
+++ b/etc/check_package.sed
@@ -15,3 +15,4 @@
 # --- SDE-COPYRIGHT-NOTE-END ---
 
 s,^http://\(.*\.\)\?dl\.\(sourceforge\|sf\)\.net/\(sourceforge/\)\?,sourceforge://,
+s,^http://prdownloads.\(sourceforge\|sf\)\.net/\(sourceforge/\)\?,sourceforge://,