--- a/devtools/client/locales/en-US/debugger.properties
+++ b/devtools/client/locales/en-US/debugger.properties
@@ -787,16 +787,21 @@ whyPaused.xhr=Paused on XMLHttpRequest
 # promise rejection
 whyPaused.promiseRejection=Paused on promise rejection
 
 # LOCALIZATION NOTE (whyPaused.getWatchpoint): The text that is displayed
 # in a info block explaining how the debugger is currently paused at a
 # watchpoint on an object property
 whyPaused.getWatchpoint=Paused on property access
 
+# LOCALIZATION NOTE (whyPaused.setWatchpoint): The text that is displayed
+# in an info block explaining how the debugger is currently paused at a
+# watchpoint on an object property
+whyPaused.setWatchpoint=Paused on property set
+
 # LOCALIZATION NOTE (whyPaused.assert): The text that is displayed
 # in a info block explaining how the debugger is currently paused on an
 # assert
 whyPaused.assert=Paused on assertion
 
 # LOCALIZATION NOTE (whyPaused.debugCommand): The text that is displayed
 # in a info block explaining how the debugger is currently paused on a
 # debugger statement