diff --git a/packages/expo-dev-launcher/CHANGELOG.md b/packages/expo-dev-launcher/CHANGELOG.md
index 487f19d770ade..e1721ba356ed7 100644
--- a/packages/expo-dev-launcher/CHANGELOG.md
+++ b/packages/expo-dev-launcher/CHANGELOG.md
@@ -12,6 +12,7 @@
 
 - Remove the deprecated `Linking.removeEventListener` in expo-dev-launcher bundle. ([#18939](https://github.com/expo/expo/pull/18939) by [@kudo](https://github.com/kudo))
 - Fixed the incompatibility with react-native-v8 on Android. ([#19117](https://github.com/expo/expo/pull/19117) by [@kudo](https://github.com/kudo))
+- Fixed crash when loading bundle without explicit port on Android. ([#19136](https://github.com/expo/expo/pull/19136) by [@kudo](https://github.com/kudo))
 
 ### 💡 Others
 
diff --git a/packages/expo-dev-launcher/android/src/main/java/expo/modules/devlauncher/helpers/DevLauncherReactUtils.kt b/packages/expo-dev-launcher/android/src/main/java/expo/modules/devlauncher/helpers/DevLauncherReactUtils.kt
index c4b61415833cc..2a36d889fb32f 100644
--- a/packages/expo-dev-launcher/android/src/main/java/expo/modules/devlauncher/helpers/DevLauncherReactUtils.kt
+++ b/packages/expo-dev-launcher/android/src/main/java/expo/modules/devlauncher/helpers/DevLauncherReactUtils.kt
@@ -9,13 +9,15 @@ import com.facebook.react.bridge.JSBundleLoader
 import expo.interfaces.devmenu.annotations.ContainsDevMenuExtension
 import expo.modules.devlauncher.react.DevLauncherDevSupportManagerSwapper
 import expo.modules.devlauncher.react.DevLauncherInternalSettings
+import okhttp3.HttpUrl
 
 fun injectReactInterceptor(
   context: Context,
   reactNativeHost: ReactNativeHost,
   url: Uri
 ): Boolean {
-  val debugServerHost = url.host + ":" + url.port
+  val port = if (url.port != -1) url.port else HttpUrl.defaultPort(url.scheme)
+  val debugServerHost = url.host + ":" + port
   // We need to remove "/" which is added to begin of the path by the Uri
   // and the bundle type
   val appBundleName = if (url.path.isNullOrEmpty()) {