diff --git a/pkgs/build-support/fetchsvn/builder.sh b/pkgs/build-support/fetchsvn/builder.sh
index 8ed30b37fc7f..c386a3f3489f 100644
--- a/pkgs/build-support/fetchsvn/builder.sh
+++ b/pkgs/build-support/fetchsvn/builder.sh
@@ -22,11 +22,7 @@ if test -z "$LC_ALL"; then
     export LC_ALL="en_US.UTF-8"
 fi;
 
-# Pipe the "p" character into Subversion to force it to accept the
-# server's certificate.  This is perfectly safe: we don't care
-# whether the server is being spoofed --- only the cryptographic
-# hash of the output matters. Pass in extra p's to handle redirects.
-printf 'p\np\np\n' | svn export --trust-server-cert --non-interactive \
+svn export --trust-server-cert --non-interactive \
     ${ignoreExternals:+--ignore-externals} ${ignoreKeywords:+--ignore-keywords} \
     -r "$rev" "$url" "$out"