diff --git a/src/panels/developer-tools/state/developer-tools-state.js b/src/panels/developer-tools/state/developer-tools-state.js
index f846418520..84552378d3 100644
--- a/src/panels/developer-tools/state/developer-tools-state.js
+++ b/src/panels/developer-tools/state/developer-tools-state.js
@@ -45,6 +45,7 @@ class HaPanelDevState extends EventsMixin(LocalizeMixin(PolymerElement)) {
         }
 
         .entities tr {
+          word-break: break-word;
           vertical-align: top;
         }