diff --git a/lightrag_webui/src/features/DocumentManager.tsx b/lightrag_webui/src/features/DocumentManager.tsx
index 31a37b13..b72f7082 100644
--- a/lightrag_webui/src/features/DocumentManager.tsx
+++ b/lightrag_webui/src/features/DocumentManager.tsx
@@ -91,7 +91,8 @@ const pulseStyle = `
   z-index: 9999; /* Ensure tooltip appears above all other elements */
   max-width: 600px;
   white-space: normal;
-  word-break: break-all;
+  word-break: break-word;
+  overflow-wrap: break-word;
   border-radius: 0.375rem;
   padding: 0.5rem 0.75rem;
   font-size: 0.75rem; /* 12px */
@@ -116,7 +117,8 @@ const pulseStyle = `
 
 .tooltip pre {
   white-space: pre-wrap;
-  word-break: break-all;
+  word-break: break-word;
+  overflow-wrap: break-word;
 }
 
 /* Position tooltip helper class */