diff --git a/release_notes.md b/release_notes.md
index 35ee86be6f..1221e810be 100644
--- a/release_notes.md
+++ b/release_notes.md
@@ -1,5 +1,7 @@
 ## next (unreleased)
 
+- [#567](https://github.com/TestArmada/flank/pull/567) Fix `--app` & `--test` on Android CLI. ([bootstraponline](https://github.com/bootstraponline))
+
 ## v6.2.2
 
 - [#566](https://github.com/TestArmada/flank/pull/566) Fix `--test` & `--xctestrun-file` on iOS CLI. ([bootstraponline](https://github.com/bootstraponline))
diff --git a/test_runner/src/main/kotlin/ftl/args/AndroidArgs.kt b/test_runner/src/main/kotlin/ftl/args/AndroidArgs.kt
index 6aacac152a..b77efe160a 100644
--- a/test_runner/src/main/kotlin/ftl/args/AndroidArgs.kt
+++ b/test_runner/src/main/kotlin/ftl/args/AndroidArgs.kt
@@ -25,6 +25,7 @@ import ftl.args.yml.YamlDeprecated
 import ftl.cli.firebase.test.android.AndroidRunCommand
 import ftl.config.Device
 import ftl.config.FtlConstants
+import ftl.util.Utils.fatalError
 import java.nio.file.Files
 import java.nio.file.Path
 
@@ -47,8 +48,8 @@ class AndroidArgs(
     override val flakyTestAttempts = cli?.flakyTestAttempts ?: gcloud.flakyTestAttempts
 
     private val androidGcloud = androidGcloudYml.gcloud
-    var appApk = cli?.app ?: androidGcloud.app
-    var testApk = cli?.test ?: androidGcloud.test
+    var appApk = cli?.app ?: androidGcloud.app ?: fatalError("app is not set")
+    var testApk = cli?.test ?: androidGcloud.test ?: fatalError("test is not set")
     val autoGoogleLogin = cli?.autoGoogleLogin ?: cli?.noAutoGoogleLogin?.not() ?: androidGcloud.autoGoogleLogin
 
     // We use not() on noUseOrchestrator because if the flag is on, useOrchestrator needs to be false
diff --git a/test_runner/src/main/kotlin/ftl/args/yml/AndroidGcloudYml.kt b/test_runner/src/main/kotlin/ftl/args/yml/AndroidGcloudYml.kt
index 38ef3046c7..046555592c 100644
--- a/test_runner/src/main/kotlin/ftl/args/yml/AndroidGcloudYml.kt
+++ b/test_runner/src/main/kotlin/ftl/args/yml/AndroidGcloudYml.kt
@@ -5,7 +5,6 @@ import com.fasterxml.jackson.annotation.JsonProperty
 import ftl.config.Device
 import ftl.config.FtlConstants.defaultAndroidModel
 import ftl.config.FtlConstants.defaultAndroidVersion
-import ftl.util.Utils.assertNotEmpty
 
 /**
  * Android specific gcloud parameters
@@ -14,8 +13,8 @@ import ftl.util.Utils.assertNotEmpty
  */
 @JsonIgnoreProperties(ignoreUnknown = true)
 class AndroidGcloudYmlParams(
-    val app: String = "",
-    val test: String = "",
+    val app: String? = null,
+    val test: String? = null,
 
     @field:JsonProperty("auto-google-login")
     val autoGoogleLogin: Boolean = true,
@@ -46,11 +45,6 @@ class AndroidGcloudYmlParams(
             "directories-to-pull", "performance-metrics", "test-runner-class", "test-targets", "device"
         )
     }
-
-    init {
-        assertNotEmpty(app, "app is not set")
-        assertNotEmpty(test, "test is not set")
-    }
 }
 
 @JsonIgnoreProperties(ignoreUnknown = true)