diff --git a/pkgs/tools/security/joincap/default.nix b/pkgs/tools/security/joincap/default.nix
new file mode 100644
index 000000000000..1589602ac062
--- /dev/null
+++ b/pkgs/tools/security/joincap/default.nix
@@ -0,0 +1,36 @@
+{ lib
+, buildGoModule
+, fetchFromGitHub
+, libpcap
+}:
+
+buildGoModule rec {
+  pname = "joincap";
+  version = "0.10.2";
+
+  src = fetchFromGitHub {
+    owner = "assafmo";
+    repo = "joincap";
+    rev = "v${version}";
+    hash = "sha256-Xli9G/VkDWKkc+7mldmLfvigvPPcdcToc4e15uoadDQ=";
+  };
+
+  vendorHash = "sha256-YsLIbt3uiA1d08yIEhSRdep1+52AxRvbIzDHlhc5s7Y=";
+
+  buildInputs = [
+    libpcap
+  ];
+
+  ldflags = [
+    "-s"
+    "-w"
+  ];
+
+  meta = with lib; {
+    description = "Merge multiple pcap files together, gracefully";
+    homepage = "https://github.com/assafmo/joincap";
+    changelog = "https://github.com/assafmo/joincap/blob/${version}/CHANGELOG.md";
+    license = licenses.mit;
+    maintainers = with maintainers; [ fab ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index f3a2e7ac1389..f2ddf39fd21b 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -30423,6 +30423,8 @@ with pkgs;
 
   join-desktop = callPackage ../applications/misc/join-desktop { };
 
+  joincap = callPackage ../tools/security/joincap { };
+
   json-plot = callPackage ../applications/graphics/json-plot { };
 
   libbitcoin = callPackage ../tools/misc/libbitcoin/libbitcoin.nix {