diff --git a/firebase-auth/src/appleMain/kotlin/dev/gitlive/firebase/auth/auth.kt b/firebase-auth/src/appleMain/kotlin/dev/gitlive/firebase/auth/auth.kt
index 7883034b2..95184fdc9 100644
--- a/firebase-auth/src/appleMain/kotlin/dev/gitlive/firebase/auth/auth.kt
+++ b/firebase-auth/src/appleMain/kotlin/dev/gitlive/firebase/auth/auth.kt
@@ -154,8 +154,8 @@ public actual class AuthTokenResult(internal val ios: FIRAuthTokenResult) {
 internal fun ActionCodeSettings.toIos() = FIRActionCodeSettings().also {
     it.setURL(NSURL.URLWithString(url))
     androidPackageName?.run { it.setAndroidPackageName(packageName, installIfNotAvailable, minimumVersion) }
-    it.setDynamicLinkDomain(dynamicLinkDomain)
-    it.setLinkDomain(linkDomain)
+    dynamicLinkDomain?.run { it.setDynamicLinkDomain(this) }
+    linkDomain?.run { it.setLinkDomain(this) }
     it.setHandleCodeInApp(canHandleCodeInApp)
     iOSBundleId?.run { it.setIOSBundleID(this) }
 }