diff --git a/embrace-android-core/src/main/kotlin/io/embrace/android/embracesdk/internal/arch/schema/EmbType.kt b/embrace-android-core/src/main/kotlin/io/embrace/android/embracesdk/internal/arch/schema/EmbType.kt
index efc74a012e..335115e9a7 100644
--- a/embrace-android-core/src/main/kotlin/io/embrace/android/embracesdk/internal/arch/schema/EmbType.kt
+++ b/embrace-android-core/src/main/kotlin/io/embrace/android/embracesdk/internal/arch/schema/EmbType.kt
@@ -25,6 +25,8 @@ sealed class EmbType(type: String, subtype: String?) : TelemetryType {
         object NativeThreadBlockageSample : Performance("native_thread_blockage_sample")
 
         object ThermalState : Performance("thermal_state")
+
+        object ActivityOpen : Performance("activity_open")
     }
 
     /**
diff --git a/embrace-android-core/src/main/kotlin/io/embrace/android/embracesdk/internal/spans/EmbraceSpanBuilder.kt b/embrace-android-core/src/main/kotlin/io/embrace/android/embracesdk/internal/spans/EmbraceSpanBuilder.kt
index b59f9e4f81..6e8d8060fc 100644
--- a/embrace-android-core/src/main/kotlin/io/embrace/android/embracesdk/internal/spans/EmbraceSpanBuilder.kt
+++ b/embrace-android-core/src/main/kotlin/io/embrace/android/embracesdk/internal/spans/EmbraceSpanBuilder.kt
@@ -85,7 +85,7 @@ class EmbraceSpanBuilder(
     }
 
     private fun updateKeySpan() {
-        if (fixedAttributes.contains(EmbType.Performance.Default)) {
+        if (fixedAttributes.contains(EmbType.Performance.Default) || fixedAttributes.contains(EmbType.Performance.ActivityOpen)) {
             if (getParentSpan() == null) {
                 fixedAttributes.add(KeySpan)
             } else {
diff --git a/embrace-android-core/src/test/java/io/embrace/android/embracesdk/internal/spans/EmbraceSpanBuilderTest.kt b/embrace-android-core/src/test/java/io/embrace/android/embracesdk/internal/spans/EmbraceSpanBuilderTest.kt
index 972ddb180d..1f2189b351 100644
--- a/embrace-android-core/src/test/java/io/embrace/android/embracesdk/internal/spans/EmbraceSpanBuilderTest.kt
+++ b/embrace-android-core/src/test/java/io/embrace/android/embracesdk/internal/spans/EmbraceSpanBuilderTest.kt
@@ -155,6 +155,31 @@ internal class EmbraceSpanBuilderTest {
         assertEquals("test-value", spanBuilder.getCustomAttributes()["test-key"])
     }
 
+    @Test
+    fun `perf and activity_open spans are key spans if parent is null`() {
+        val perfSpanBuilder = EmbraceSpanBuilder(
+            tracer = tracer,
+            name = "test",
+            telemetryType = EmbType.Performance.Default,
+            internal = false,
+            private = false,
+            parentSpan = null,
+        )
+
+        assertTrue(perfSpanBuilder.getFixedAttributes().toSet().contains(KeySpan))
+
+        val activityOpenSpanBuilder = EmbraceSpanBuilder(
+            tracer = tracer,
+            name = "test",
+            telemetryType = EmbType.Performance.ActivityOpen,
+            internal = false,
+            private = false,
+            parentSpan = null,
+        )
+
+        assertTrue(activityOpenSpanBuilder.getFixedAttributes().toSet().contains(KeySpan))
+    }
+
     @Test
     fun `context value propagated even if it does not context a span`() {
         val fakeRootContext = Context.root().with(fakeContextKey, "fake-value")