diff --git a/Lock/OptionBuildable.swift b/Lock/OptionBuildable.swift
index cbf02eecc..576025306 100644
--- a/Lock/OptionBuildable.swift
+++ b/Lock/OptionBuildable.swift
@@ -91,6 +91,7 @@ internal extension OptionBuildable {
         guard !self.allow.isEmpty else { return UnrecoverableError.invalidOptions(cause: "Must allow at least one database mode") }
         guard !self.usernameStyle.isEmpty else { return UnrecoverableError.invalidOptions(cause: "Must specify at least one username style") }
         guard self.allow.contains(.Login) || self.closable || self.autoClose else { return UnrecoverableError.invalidOptions(cause: "Must enable autoclose or enable closable") }
+        guard self.oidcConformant || self.audience == nil else { return UnrecoverableError.invalidOptions(cause: "Must set OIDC-Conformant flag in Lock to use audience option") }
         return nil
     }
 }
diff --git a/LockTests/OptionsSpec.swift b/LockTests/OptionsSpec.swift
index 30d3f174a..7f0c18abc 100644
--- a/LockTests/OptionsSpec.swift
+++ b/LockTests/OptionsSpec.swift
@@ -128,6 +128,24 @@ class OptionsSpec: QuickSpec {
                 expect(options.validate()).toNot(beNil())
             }
 
+            it("should fail setting audience in non OIDC mode") {
+                options.oidcConformant = false
+                options.audience = "https://myapi.com"
+                expect(options.validate()).toNot(beNil())
+            }
+
+            it("should allow no audience in OIDC mode") {
+                options.oidcConformant = true
+                options.audience = nil
+                expect(options.validate()).to(beNil())
+            }
+
+            it("should allow audience in OIDC mode") {
+                options.oidcConformant = true
+                options.audience = "https://myapi.com"
+                expect(options.validate()).to(beNil())
+            }
+
             context("auto close") {
 
                 it("should fail when autoclose is empty and no .Login allowed") {