diff --git a/src/corelib/plugin/qlibrary_unix.cpp b/src/corelib/plugin/qlibrary_unix.cpp
index e29207e422f..1376462ff33 100644
--- a/src/corelib/plugin/qlibrary_unix.cpp
+++ b/src/corelib/plugin/qlibrary_unix.cpp
@@ -244,7 +244,8 @@ bool QLibraryPrivate::load_sys()
 
     locker.relock();
     if (!hnd) {
-        errorString = QLibrary::tr("Cannot load library %1: %2").arg(fileName, dlerror());
+        errorString = QLibrary::tr("Cannot load library %1: %2").arg(fileName,
+                                                                     QLatin1StringView(dlerror()));
     }
     if (hnd) {
         qualifiedFileName = attempt;