diff --git a/Source/WebKit/ChangeLog b/Source/WebKit/ChangeLog
index 599a847..f583812 100644
--- a/Source/WebKit/ChangeLog
+++ b/Source/WebKit/ChangeLog
@@ -1,3 +1,17 @@
+2020-07-01  James Savage  <james.savage@apple.com>
+
+        Fix Swift overlay build after r263727.
+        https://bugs.webkit.org/show_bug.cgi?id=213823.
+
+        Unreviewed, follow up build fix.
+
+        * SwiftOverlay/Tests/WebKitTests.swift:
+        (WebKitTests.testAPI): Fix tests to refer to new parameter name.
+        * UIProcess/API/Cocoa/WebKitSwiftOverlay.swift:
+        (callAsyncJavaScript(_:arguments:in:in:completionHandler:Error:)): Use
+        the imported ObjC name that the compiler expects.
+        (evaluateJavaScript(_:in:in:completionHandler:Error:)): Ditto.
+
 2020-07-01  Youenn Fablet  <youenn@apple.com>
 
         Make NetworkRTCProvider receive IPC messages from a background thread
diff --git a/Source/WebKit/SwiftOverlay/Tests/WebKitTests.swift b/Source/WebKit/SwiftOverlay/Tests/WebKitTests.swift
index 84b3060..705042c 100644
--- a/Source/WebKit/SwiftOverlay/Tests/WebKitTests.swift
+++ b/Source/WebKit/SwiftOverlay/Tests/WebKitTests.swift
@@ -30,10 +30,10 @@
     /// This is a compile-time test that ensures the function names are what we expect.
     func testAPI() {
         _ = WKContentWorld.world(name:)
-        _ = WKWebView.callAsyncJavaScript(_:arguments:in:completionHandler:)
+        _ = WKWebView.callAsyncJavaScript(_:arguments:in:in:completionHandler:)
         _ = WKWebView.createPDF(configuration:completionHandler:)
         _ = WKWebView.createWebArchiveData(completionHandler:)
-        _ = WKWebView.evaluateJavaScript(_:in:completionHandler:)
+        _ = WKWebView.evaluateJavaScript(_:in:in:completionHandler:)
         _ = WKWebView.find(_:configuration:completionHandler:)
     }
 
diff --git a/Source/WebKit/UIProcess/API/Cocoa/WebKitSwiftOverlay.swift b/Source/WebKit/UIProcess/API/Cocoa/WebKitSwiftOverlay.swift
index d8cfad9..8763353 100644
--- a/Source/WebKit/UIProcess/API/Cocoa/WebKitSwiftOverlay.swift
+++ b/Source/WebKit/UIProcess/API/Cocoa/WebKitSwiftOverlay.swift
@@ -36,7 +36,7 @@
 @available(iOS 14.0, macOS 10.16, *)
 extension WKWebView {
     public func callAsyncJavaScript(_ functionBody: String, arguments: [String:Any] = [:], in frame: WKFrameInfo? = nil, in contentWorld: WKContentWorld, completionHandler: ((Result<Any, Error>) -> Void)? = nil) {
-        __callAsyncJavaScript(functionBody, arguments: arguments, in: frame, in: contentWorld, completionHandler: completionHandler.map(makeResultHandler))
+        __callAsyncJavaScript(functionBody, arguments: arguments, inFrame: frame, in: contentWorld, completionHandler: completionHandler.map(makeResultHandler))
     }
 
     public func createPDF(configuration: WKPDFConfiguration = .init(), completionHandler: @escaping (Result<Data, Error>) -> Void) {
@@ -48,7 +48,7 @@
     }
 
     public func evaluateJavaScript(_ javaScript: String, in frame: WKFrameInfo? = nil, in contentWorld: WKContentWorld, completionHandler: ((Result<Any, Error>) -> Void)? = nil) {
-        __evaluateJavaScript(javaScript, in: frame, in: contentWorld, completionHandler: completionHandler.map(makeResultHandler))
+        __evaluateJavaScript(javaScript, inFrame: frame, in: contentWorld, completionHandler: completionHandler.map(makeResultHandler))
     }
 
     public func find(_ string: String, configuration: WKFindConfiguration = .init(), completionHandler: @escaping (WKFindResult) -> Void) {