diff --git a/README.markdown b/README.markdown
index f020072..7039d59 100644
--- a/README.markdown
+++ b/README.markdown
@@ -38,7 +38,7 @@ Supported Microcontrollers
 
 * Teensy 2.0 (Partial)
 * Teensy 2.0++
-* Teesny 3.0
+* Teensy 3.0
 * Teensy 3.1
 * mk20dx128vlf5
 * mk20dx256vlh7