diff --git a/pkgs/applications/networking/mailreaders/mutt/no-build-only-refs.patch b/pkgs/applications/networking/mailreaders/mutt/no-build-only-refs.patch
index de969a8a889e..ed1ebbc380a6 100644
--- a/pkgs/applications/networking/mailreaders/mutt/no-build-only-refs.patch
+++ b/pkgs/applications/networking/mailreaders/mutt/no-build-only-refs.patch
@@ -12,7 +12,7 @@ Avoid build-only store references embedding into 'mutt -v'.
 +	# 'gcc -v' output embedded into 'mutt -v'. But also might be
 +	# ./configure-passed arguments.
 +	sed \
-+	    -e 's@'$NIX_STORE'/[a-z0-9]\{32\}-@/<<NIX>>/@g'
++	    -e "s|$NIX_STORE/[a-z0-9]\{32\}-|$NIX_STORE/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-|g"
 +}
 +
  if ./txt2c test </dev/null >/dev/null 2>&1; then