diff --git a/pkgs/by-name/wa/waterfurnace_aurora/package.nix b/pkgs/by-name/wa/waterfurnace_aurora/package.nix
index 48d2d2925f680..19b361fd5f505 100644
--- a/pkgs/by-name/wa/waterfurnace_aurora/package.nix
+++ b/pkgs/by-name/wa/waterfurnace_aurora/package.nix
@@ -1,7 +1,9 @@
 {
   lib,
+  fetchpatch2,
   bundlerApp,
   bundlerUpdateScript,
+  defaultGemConfig,
 }:
 
 bundlerApp {
@@ -16,6 +18,19 @@ bundlerApp {
     "web_aid_tool"
   ];
 
+  gemConfig = defaultGemConfig // {
+    ccutrer-serialport = attrs: {
+      dontBuild = false;
+      patches = [
+        (fetchpatch2 {
+          name = "use-numeric-baud-rates.patch";
+          url = "https://github.com/ccutrer/ccutrer-serialport/commit/52f5c1cba94fe9453444baa79dd7c08b2efab8bf.patch?full_index=1";
+          hash = "sha256-KKH/RXhql/3jl3/xheZmQ16Rv1w0/AWV7WfCZQb1Xlk=";
+        })
+      ];
+    };
+  };
+
   passthru.updateScript = bundlerUpdateScript "waterfurnace_aurora";
 
   meta = {