diff --git a/src/gui/text/qfontdatabase.cpp b/src/gui/text/qfontdatabase.cpp
index cf2573c9848..203230636b5 100644
--- a/src/gui/text/qfontdatabase.cpp
+++ b/src/gui/text/qfontdatabase.cpp
@@ -304,10 +304,12 @@ void QFontDatabasePrivate::invalidate()
     emit static_cast<QGuiApplication *>(QCoreApplication::instance())->fontDatabaseChanged();
 }
 
-QtFontFamily *QFontDatabasePrivate::family(const QString &f, FamilyRequestFlags flags)
+QtFontFamily *QFontDatabasePrivate::family(const QString &family, FamilyRequestFlags flags)
 {
     QtFontFamily *fam = nullptr;
 
+    const QString f = family.trimmed();
+
     int low = 0;
     int high = count;
     int pos = count / 2;