diff --git a/.autover/changes/3fb2215f-52a7-4b5c-8019-65b4c8618452.json b/.autover/changes/3fb2215f-52a7-4b5c-8019-65b4c8618452.json
new file mode 100644
index 00000000..d10cf40c
--- /dev/null
+++ b/.autover/changes/3fb2215f-52a7-4b5c-8019-65b4c8618452.json
@@ -0,0 +1,11 @@
+{
+  "Projects": [
+    {
+      "Name": "Amazon.Lambda.Tools",
+      "Type": "Patch",
+      "ChangelogMessages": [
+        "Fix: Use function architecture to determine artifact path instead of hardcoded \u0027x64\u0027."
+      ]
+    }
+  ]
+}
\ No newline at end of file
diff --git a/src/Amazon.Lambda.Tools/Commands/PublishLayerCommand.cs b/src/Amazon.Lambda.Tools/Commands/PublishLayerCommand.cs
index f052680e..d16394a9 100644
--- a/src/Amazon.Lambda.Tools/Commands/PublishLayerCommand.cs
+++ b/src/Amazon.Lambda.Tools/Commands/PublishLayerCommand.cs
@@ -246,9 +246,9 @@ private async Task<CreateLayerZipFileResult> CreateRuntimePackageStoreLayerZipFi
                 }
                 var architecture = this.GetStringValueOrDefault(this.Architecture, LambdaDefinedCommandOptions.ARGUMENT_FUNCTION_ARCHITECTURE, false);
                 var cliWrapper = new LambdaDotNetCLIWrapper(this.Logger, this.WorkingDirectory);
-                if(cliWrapper.Store(defaults: this.DefaultConfig, 
+                if (cliWrapper.Store(defaults: this.DefaultConfig,
                                         projectLocation: projectLocation,
-                                        outputLocation: storeOutputDirectory, 
+                                        outputLocation: storeOutputDirectory,
                                         targetFramework: targetFramework,
                                         packageManifest: convertResult.PackageManifest,
                                         architecture: architecture,
@@ -265,7 +265,8 @@ private async Task<CreateLayerZipFileResult> CreateRuntimePackageStoreLayerZipFi
 
             // The artifact.xml file is generated by the "dotnet store" command that lists the packages that were added to the store.
             // It is required during a "dotnet publish" so the NuGet packages in the store will be filtered out.
-            var artifactXmlPath = Path.Combine(storeOutputDirectory, "x64", targetFramework, "artifact.xml");
+            var architectureDirectory = this.GetStringValueOrDefault(this.Architecture, LambdaDefinedCommandOptions.ARGUMENT_FUNCTION_ARCHITECTURE, false) ?? "x64";
+            var artifactXmlPath = Path.Combine(storeOutputDirectory, architectureDirectory, targetFramework, "artifact.xml");
             if(!File.Exists(artifactXmlPath))
             {
                 throw new LambdaToolsException($"Failed to find artifact.xml file in created local store.", LambdaToolsException.LambdaErrorCode.FailedToFindArtifactZip);