diff --git a/avmedia/source/framework/mediaitem.cxx b/avmedia/source/framework/mediaitem.cxx
index 4699a0454359..320a24bc9bfe 100644
--- a/avmedia/source/framework/mediaitem.cxx
+++ b/avmedia/source/framework/mediaitem.cxx
@@ -469,7 +469,7 @@ bool EmbedMedia(uno::Reference<frame::XModel> const& xModel,
         uno::Reference<embed::XStorage> const xStorage(
                 xSBD->getDocumentStorage(), uno::UNO_SET_THROW);
 
-        static constexpr OUStringLiteral media(u"Media");
+        static constexpr OUString media(u"Media"_ustr);
         uno::Reference<embed::XStorage> const xSubStorage(
             xStorage->openStorageElement(media, embed::ElementModes::WRITE));
 
diff --git a/avmedia/source/gstreamer/gstframegrabber.cxx b/avmedia/source/gstreamer/gstframegrabber.cxx
index 6f41511dc128..4c4b17326860 100644
--- a/avmedia/source/gstreamer/gstframegrabber.cxx
+++ b/avmedia/source/gstreamer/gstframegrabber.cxx
@@ -32,7 +32,7 @@
 #include <string>
 
 constexpr OUStringLiteral AVMEDIA_GST_FRAMEGRABBER_IMPLEMENTATIONNAME = u"com.sun.star.comp.avmedia.FrameGrabber_GStreamer";
-constexpr OUStringLiteral AVMEDIA_GST_FRAMEGRABBER_SERVICENAME = u"com.sun.star.media.FrameGrabber_GStreamer";
+constexpr OUString AVMEDIA_GST_FRAMEGRABBER_SERVICENAME = u"com.sun.star.media.FrameGrabber_GStreamer"_ustr;
 
 using namespace ::com::sun::star;
 
diff --git a/avmedia/source/gstreamer/gstplayer.cxx b/avmedia/source/gstreamer/gstplayer.cxx
index 259185c197ec..fd1407b3ca4f 100644
--- a/avmedia/source/gstreamer/gstplayer.cxx
+++ b/avmedia/source/gstreamer/gstplayer.cxx
@@ -51,7 +51,7 @@
 #include <gst/pbutils/pbutils.h>
 
 constexpr OUStringLiteral AVMEDIA_GST_PLAYER_IMPLEMENTATIONNAME = u"com.sun.star.comp.avmedia.Player_GStreamer";
-constexpr OUStringLiteral AVMEDIA_GST_PLAYER_SERVICENAME        = u"com.sun.star.media.Player_GStreamer";
+constexpr OUString AVMEDIA_GST_PLAYER_SERVICENAME        = u"com.sun.star.media.Player_GStreamer"_ustr;
 #define AVVERSION "gst 1.0: "
 
 using namespace ::com::sun::star;
diff --git a/avmedia/source/gstreamer/gstwindow.cxx b/avmedia/source/gstreamer/gstwindow.cxx
index 5862443da6aa..5f1a9e4acf13 100644
--- a/avmedia/source/gstreamer/gstwindow.cxx
+++ b/avmedia/source/gstreamer/gstwindow.cxx
@@ -24,7 +24,7 @@
 #include "gstwindow.hxx"
 
 constexpr OUStringLiteral AVMEDIA_GST_WINDOW_IMPLEMENTATIONNAME = u"com.sun.star.comp.avmedia.Window_GStreamer";
-constexpr OUStringLiteral AVMEDIA_GST_WINDOW_SERVICENAME = u"com.sun.star.media.Window_GStreamer";
+constexpr OUString AVMEDIA_GST_WINDOW_SERVICENAME = u"com.sun.star.media.Window_GStreamer"_ustr;
 
 using namespace ::com::sun::star;
 
diff --git a/avmedia/source/gtk/gtkplayer.cxx b/avmedia/source/gtk/gtkplayer.cxx
index 47a57e3a4cd2..4dca3e202a24 100644
--- a/avmedia/source/gtk/gtkplayer.cxx
+++ b/avmedia/source/gtk/gtkplayer.cxx
@@ -29,7 +29,7 @@
 
 constexpr OUStringLiteral AVMEDIA_GTK_PLAYER_IMPLEMENTATIONNAME
     = u"com.sun.star.comp.avmedia.Player_Gtk";
-constexpr OUStringLiteral AVMEDIA_GTK_PLAYER_SERVICENAME = u"com.sun.star.media.Player_Gtk";
+constexpr OUString AVMEDIA_GTK_PLAYER_SERVICENAME = u"com.sun.star.media.Player_Gtk"_ustr;
 
 using namespace ::com::sun::star;