diff --git a/env.example b/env.example
index 4ab64aba..5d24c118 100644
--- a/env.example
+++ b/env.example
@@ -125,7 +125,7 @@ ENABLE_LLM_CACHE_FOR_EXTRACT=true
 SUMMARY_LANGUAGE=English
 
 ### Entity types that the LLM will attempt to recognize
-# ENTITY_TYPES='["Organization", "Person", "Equiment", "Product", "Technology", "Location", "Event", "Category"]'
+# ENTITY_TYPES='["Organization", "Person", "Equipment", "Product", "Technology", "Location", "Event", "Category"]'
 
 ### Chunk size for document splitting, 500~1500 is recommended
 # CHUNK_SIZE=1200
diff --git a/lightrag/constants.py b/lightrag/constants.py
index 9accdc52..5cdba052 100644
--- a/lightrag/constants.py
+++ b/lightrag/constants.py
@@ -26,7 +26,7 @@ DEFAULT_SUMMARY_CONTEXT_SIZE = 12000
 DEFAULT_ENTITY_TYPES = [
     "Organization",
     "Person",
-    "Equiment",
+    "Equipment",
     "Product",
     "Technology",
     "Location",