diff --git a/kcms/fonts/previewimageprovider.cpp b/kcms/fonts/previewimageprovider.cpp
--- a/kcms/fonts/previewimageprovider.cpp
+++ b/kcms/fonts/previewimageprovider.cpp
@@ -125,6 +125,8 @@
     xft.setSubPixelType(oldSubPixelType);
     xft.setHintStyle(oldHintStyle);
     
+    xft.apply();
+    
     *size = img.size();
     
     return img;