diff --git a/libfwupdplugin/fu-device.c b/libfwupdplugin/fu-device.c
index eaa4640fa..27aed01ba 100644
--- a/libfwupdplugin/fu-device.c
+++ b/libfwupdplugin/fu-device.c
@@ -2189,7 +2189,9 @@ fu_device_fixup_vendor_name(FuDevice *self)
 	const gchar *name = fu_device_get_name(self);
 	const gchar *vendor = fu_device_get_vendor(self);
 	if (name != NULL && vendor != NULL) {
-		if (g_str_has_prefix(name, vendor)) {
+		g_autofree gchar *name_up = g_utf8_strup(name, -1);
+		g_autofree gchar *vendor_up = g_utf8_strup(vendor, -1);
+		if (g_str_has_prefix(name_up, vendor_up)) {
 			gsize vendor_len = strlen(vendor);
 			g_autofree gchar *name1 = g_strdup(name + vendor_len);
 			g_autofree gchar *name2 = fu_common_strstrip(name1);
diff --git a/libfwupdplugin/fu-self-test.c b/libfwupdplugin/fu-self-test.c
index acc7c5c52..900787347 100644
--- a/libfwupdplugin/fu-self-test.c
+++ b/libfwupdplugin/fu-self-test.c
@@ -264,7 +264,7 @@ fu_device_name_func(void)
 
 	/* vendor then name */
 	fu_device_set_vendor(device1, "Hughski");
-	fu_device_set_name(device1, "Hughski  ColorHug(TM)__Pro  ");
+	fu_device_set_name(device1, "HUGHSKI  ColorHug(TM)__Pro  ");
 	g_assert_cmpstr(fu_device_get_vendor(device1), ==, "Hughski");
 	g_assert_cmpstr(fu_device_get_name(device1), ==, "ColorHug™ Pro");