diff --git a/src/plugins/platforms/wasm/qwasmeventtranslator.cpp b/src/plugins/platforms/wasm/qwasmeventtranslator.cpp
index edd323294cc..758e6c2da58 100644
--- a/src/plugins/platforms/wasm/qwasmeventtranslator.cpp
+++ b/src/plugins/platforms/wasm/qwasmeventtranslator.cpp
@@ -244,12 +244,12 @@ static Qt::Key find(const KeyMapping (&map)[N], Qt::Key key) noexcept
     return find_impl(map, map + N, key);
 }
 
-Qt::Key QWasmEventTranslator::translateDeadKey(Qt::Key deadKey, Qt::Key accentBaseKey, bool is_mac)
+Qt::Key QWasmEventTranslator::translateDeadKey(Qt::Key deadKey, Qt::Key accentBaseKey)
 {
     Qt::Key wasmKey = Qt::Key_unknown;
 
     if (deadKey == Qt::Key_QuoteLeft ) {
-        if (is_mac) { // ` macOS: Key_Dead_Grave
+        if (platform() == Platform::MacOS) { // ` macOS: Key_Dead_Grave
             wasmKey = find(graveKeyTable, accentBaseKey);
         } else {
             wasmKey = find(diaeresisKeyTable, accentBaseKey);
diff --git a/src/plugins/platforms/wasm/qwasmeventtranslator.h b/src/plugins/platforms/wasm/qwasmeventtranslator.h
index 76da1ebbe5b..c076ba38bc8 100644
--- a/src/plugins/platforms/wasm/qwasmeventtranslator.h
+++ b/src/plugins/platforms/wasm/qwasmeventtranslator.h
@@ -41,7 +41,7 @@ public:
 Q_SIGNALS:
     void getWindowAt(const QPoint &point, QWindow **window);
 private:
-    static Qt::Key translateDeadKey(Qt::Key deadKey, Qt::Key accentBaseKey, bool is_mac = false);
+    static Qt::Key translateDeadKey(Qt::Key deadKey, Qt::Key accentBaseKey);
 
 private:
     static quint64 getTimestamp();