diff --git a/settings.gradle.kts b/settings.gradle.kts
index dc2418bfe1d..350416e7d40 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -59,6 +59,7 @@ include(":tests:e2e-test-util")
 include(":tests:codegen:smoke-tests")
 include(":tests:codegen:smoke-tests:services")
 include(":tests:codegen:checksums")
+include(":tests:codegen:union-example")
 
 // generated services
 val File.isServiceDir: Boolean
diff --git a/tests/codegen/union-example/build.gradle.kts b/tests/codegen/union-example/build.gradle.kts
new file mode 100644
index 00000000000..e168201507d
--- /dev/null
+++ b/tests/codegen/union-example/build.gradle.kts
@@ -0,0 +1,37 @@
+import aws.sdk.kotlin.gradle.codegen.dsl.smithyKotlinPlugin
+import aws.sdk.kotlin.gradle.codegen.smithyKotlinProjectionSrcDir
+import aws.sdk.kotlin.tests.codegen.CodegenTest
+import aws.sdk.kotlin.tests.codegen.Model
+
+description = "AWS SDK for Kotlin's union codegen test suite"
+
+val tests = listOf(
+    CodegenTest("unions", Model("unions.smithy"), "aws.sdk.kotlin.test#TestService"),
+)
+
+smithyBuild {
+    this@Build_gradle.tests.forEach { test ->
+        projections.register(test.name) {
+            imports = listOf(layout.projectDirectory.file(test.model.path + test.model.fileName).asFile.absolutePath)
+            smithyKotlinPlugin {
+                serviceShapeId = test.serviceShapeId
+                packageName = "aws.sdk.kotlin.test.${test.name.lowercase()}"
+                packageVersion = "1.0"
+                buildSettings {
+                    generateFullProject = false
+                    generateDefaultBuildFiles = false
+                    optInAnnotations = listOf(
+                        "aws.smithy.kotlin.runtime.InternalApi",
+                        "aws.sdk.kotlin.runtime.InternalSdkApi",
+                    )
+                }
+            }
+        }
+    }
+}
+
+kotlin.sourceSets.getByName("test") {
+    smithyBuild.projections.forEach {
+        kotlin.srcDir(smithyBuild.smithyKotlinProjectionSrcDir(it.name))
+    }
+}
diff --git a/tests/codegen/union-example/src/test/kotlin/aws/sdk/kotlin/tests/codegen/unionexample/UnionTest.kt b/tests/codegen/union-example/src/test/kotlin/aws/sdk/kotlin/tests/codegen/unionexample/UnionTest.kt
new file mode 100644
index 00000000000..d293270d494
--- /dev/null
+++ b/tests/codegen/union-example/src/test/kotlin/aws/sdk/kotlin/tests/codegen/unionexample/UnionTest.kt
@@ -0,0 +1,11 @@
+package aws.sdk.kotlin.tests.codegen.unionexample
+
+import aws.sdk.kotlin.test.unions.model.Foo
+import kotlin.test.Test
+
+class UnionTest {
+    @Test
+    fun `try code generating a union with a member that has the same name as it, then use it`() {
+        Foo.Foo(true).asFoo()
+    }
+}
diff --git a/tests/codegen/union-example/src/test/resources/unions.smithy b/tests/codegen/union-example/src/test/resources/unions.smithy
new file mode 100644
index 00000000000..77f1bef63ec
--- /dev/null
+++ b/tests/codegen/union-example/src/test/resources/unions.smithy
@@ -0,0 +1,26 @@
+$version: "2"
+namespace aws.sdk.kotlin.test
+
+use aws.protocols#awsJson1_0
+use smithy.rules#operationContextParams
+use smithy.rules#endpointRuleSet
+use aws.api#service
+
+@awsJson1_0
+@service(sdkId: "UnionOperationTest")
+service TestService {
+    operations: [DeleteObjects],
+    version: "1"
+}
+
+operation DeleteObjects {
+    input: DeleteObjectsRequest
+}
+
+structure DeleteObjectsRequest {
+    Delete: Foo
+}
+
+union Foo {
+    foo: Boolean
+}