diff --git a/library.properties b/library.properties
index 55987e7..2a2cc88 100644
--- a/library.properties
+++ b/library.properties
@@ -7,4 +7,4 @@ paragraph=Library for M5Stack Chain series units.
 category=Device Control
 url=https://github.com/m5stack/M5Chain
 architectures=*
-includes=M5Chain.hpp
\ No newline at end of file
+includes=M5Chain.h
\ No newline at end of file