diff --git a/src/effects/backgroundcontrast/metadata.json b/src/effects/backgroundcontrast/metadata.json
index 6231b79468..f39f39fac5 100644
--- a/src/effects/backgroundcontrast/metadata.json
+++ b/src/effects/backgroundcontrast/metadata.json
@@ -52,6 +52,7 @@
         "Name[ka]": "ფონის კონტრასტი",
         "Name[nl]": "Contrast in achtergrond",
         "Name[pt]": "Contraste do Fundo",
+        "Name[sl]": "Kontrast ozadja",
         "Name[ta]": "பின்புல நிறமாறுபாடு",
         "Name[tr]": "Arka Plan Karşıtlığı",
         "Name[uk]": "Контрастність тла",
diff --git a/src/effects/morphingpopups/package/metadata.json b/src/effects/morphingpopups/package/metadata.json
index 5c1cb42ff3..2ba02bf511 100644
--- a/src/effects/morphingpopups/package/metadata.json
+++ b/src/effects/morphingpopups/package/metadata.json
@@ -84,6 +84,7 @@
         "Name[ka]": "ტრანსფორმირებადი მხტუნარები",
         "Name[nl]": "Morphing pop-ups",
         "Name[pt]": "Janelas Mutantes",
+        "Name[sl]": "Pogovorna okna pretvorb",
         "Name[tr]": "Dönüşen Açılır Pencereler",
         "Name[uk]": "Аморфні контекстні панелі",
         "Name[x-test]": "xxMorphing Popupsxx",
diff --git a/src/effects/slidingpopups/metadata.json b/src/effects/slidingpopups/metadata.json
index 4c068b2db5..10c0750cd7 100644
--- a/src/effects/slidingpopups/metadata.json
+++ b/src/effects/slidingpopups/metadata.json
@@ -52,6 +52,7 @@
         "Name[ka]": "მცურავი მხტუნარები",
         "Name[nl]": "Schuivende pop-ups",
         "Name[pt]": "Janelas Deslizantes",
+        "Name[sl]": "Drsne pretvorbe",
         "Name[tr]": "Kayan Açılır Pencereler",
         "Name[uk]": "Ковзні контекстні вікна",
         "Name[x-test]": "xxSliding Popupsxx"