diff --git a/kotlin-native/runtime/src/objc/cpp/ObjCExportClasses.mm b/kotlin-native/runtime/src/objc/cpp/ObjCExportClasses.mm
index 655cc9eca0b..888a88a4b87 100644
--- a/kotlin-native/runtime/src/objc/cpp/ObjCExportClasses.mm
+++ b/kotlin-native/runtime/src/objc/cpp/ObjCExportClasses.mm
@@ -233,7 +233,7 @@ OBJ_GETTER(Kotlin_boxDouble, KDouble value);
 
 static void injectToRuntime() {
   // If the code below fails, then it is most likely caused by KT-42254.
-  const char* errorMessage = "runtime injected twice; https://youtrack.jetbrains.com/issue/KT-42254 might be related";
+  constexpr const char* errorMessage = "runtime injected twice; https://youtrack.jetbrains.com/issue/KT-42254 might be related";
 
   RuntimeCheck(Kotlin_ObjCExport_toKotlinSelector == nullptr, errorMessage);
   Kotlin_ObjCExport_toKotlinSelector = @selector(toKotlin:);