diff --git a/frontend/fontlist.lua b/frontend/fontlist.lua
index c78aa8fca..c48658e8b 100644
--- a/frontend/fontlist.lua
+++ b/frontend/fontlist.lua
@@ -73,16 +73,16 @@ local kindle_fonts_blacklist = {
     ["AmazonEmberBold-Italic.ttf"] = true,
     ["AmazonEmberBold-Regular.ttf"] = true,
     ["Caecilia_LT_65_Medium.ttf"] = false,
-    ["Caecilia_LT_66_Medium_Italic.ttf"] = false,
+    ["Caecilia_LT_66_Medium_Italic.ttf"] = true,
     ["Caecilia_LT_75_Bold.ttf"] = false,
-    ["Caecilia_LT_76_Bold_Italic.ttf"] = false,
+    ["Caecilia_LT_76_Bold_Italic.ttf"] = true,
     ["Caecilia_LT_67_Cond_Medium.ttf"] = true,
     ["Caecilia_LT_68_Cond_Medium_Italic.ttf"] = true,
     ["Caecilia_LT_77_Cond_Bold.ttf"] = true,
     ["Caecilia_LT_78_Cond_Bold_Italic.ttf"] = true,
     ["Futura-Bold.ttf"] = true,
     ["Futura-BoldOblique.ttf"] = true,
-    ["Helvetica_LT_65_Medium.ttf"] = true,
+    ["Helvetica_LT_65_Medium.ttf"] = false,
     ["Helvetica_LT_66_Medium_Italic.ttf"] = true,
     ["Helvetica_LT_75_Bold.ttf"] = true,
     ["Helvetica_LT_76_Bold_Italic.ttf"] = true,