diff --git a/pkgs/applications/networking/compactor/default.nix b/pkgs/applications/networking/compactor/default.nix
index 6ddc5b0c0098..84c0f6ae8ba5 100644
--- a/pkgs/applications/networking/compactor/default.nix
+++ b/pkgs/applications/networking/compactor/default.nix
@@ -16,6 +16,10 @@ stdenv.mkDerivation rec {
     hash = "sha256-5Z14suhO5ghhmZsSj4DsSoKm+ct2gQFO6qxhjmx4Xm4=";
   };
 
+  patches = [
+    ./patches/add-a-space-after-type-in-check-response-opt-sh.patch
+  ];
+
   nativeBuildInputs = [
     asciidoctor
     autoreconfHook
diff --git a/pkgs/applications/networking/compactor/patches/add-a-space-after-type-in-check-response-opt-sh.patch b/pkgs/applications/networking/compactor/patches/add-a-space-after-type-in-check-response-opt-sh.patch
new file mode 100644
index 000000000000..3c82b3ae3ae8
--- /dev/null
+++ b/pkgs/applications/networking/compactor/patches/add-a-space-after-type-in-check-response-opt-sh.patch
@@ -0,0 +1,24 @@
+From 4535666b23d2ad3fa4066c720fc9b9e51fe4c549 Mon Sep 17 00:00:00 2001
+From: Pavel Sobolev <paveloom@riseup.net>
+Date: Sat, 18 Nov 2023 16:11:05 +0300
+Subject: [PATCH] Add a space after `Type` in `check-response-opt.sh`
+
+---
+ test-scripts/check-response-opt.sh | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/test-scripts/check-response-opt.sh b/test-scripts/check-response-opt.sh
+index 2322bc8..f0e7e66 100755
+--- a/test-scripts/check-response-opt.sh
++++ b/test-scripts/check-response-opt.sh
+@@ -50,7 +50,7 @@ fi
+ # Make text file with expected responses.
+ cat > $tmpdir/opt.gold <<EOF
+ Name: <Root>
+-Type: OPT (41)
++Type: OPT (41) 
+ UDP payload size: 4096
+ Higher bits in extended RCODE: 0x00
+ EDNS0 version: 0
+--
+2.42.0