diff --git a/libraries/CurieBLE/README.md b/libraries/CurieBLE/README.md
index 3642943d..2f0b4cba 100644
--- a/libraries/CurieBLE/README.md
+++ b/libraries/CurieBLE/README.md
@@ -1,4 +1,4 @@
-# Enable debug interface on Serail1
+# Enable debug interface on Serial1
 
 * Default disable the debug interface.