diff --git a/src/platformsupport/fontdatabases/fontdatabases.pri b/src/platformsupport/fontdatabases/fontdatabases.pri
index 0e282d97dd..a31f050158 100644
--- a/src/platformsupport/fontdatabases/fontdatabases.pri
+++ b/src/platformsupport/fontdatabases/fontdatabases.pri
@@ -1,5 +1,6 @@
 DEFINES += QT_COMPILES_IN_HARFBUZZ
 INCLUDEPATH += $$QT_SOURCE_TREE/src/3rdparty/harfbuzz/src
+CONFIG += qpa/genericunixfontdatabase
 
 unix {
     include($$PWD/basicunix/basicunix.pri)