diff --git a/src/tech/encryption/android_crypto_implementation.md b/src/tech/encryption/android_crypto_implementation.md
index 4e7b733..f3de9da 100644
--- a/src/tech/encryption/android_crypto_implementation.md
+++ b/src/tech/encryption/android_crypto_implementation.md
@@ -54,7 +54,7 @@
     "setprop vold.post_fs_data_done 1".
 
 
-## How Adroid encryption works
+## How Android encryption works
 
 Disk encryption on Android is based on dm-crypt, which is a kernel feature that
 works at the block device layer.  Therefore, it is not usable with YAFFS, which