diff --git a/lang/en.yml b/lang/en.yml
index 3eade26..1d1e4cf 100644
--- a/lang/en.yml
+++ b/lang/en.yml
@@ -10,3 +10,12 @@ en:
     SINGULARNAME: 'IFrame Page'
     TITLE_DESCRIPTION: 'Used by screen readers'
     VALIDATION_BANNEDURLSCHEME: 'This URL scheme is not allowed.'
+    db_AlternateContent: 'Alternate content'
+    db_AutoHeight: 'Auto height'
+    db_AutoWidth: 'Auto width'
+    db_BottomContent: 'Bottom content'
+    db_FixedHeight: 'Fixed height'
+    db_FixedWidth: 'Fixed width'
+    db_ForceProtocol: 'Force protocol'
+    db_IFrameTitle: 'I frame title'
+    db_IFrameURL: 'I frame URL'