diff --git a/first-network/byfn.sh b/first-network/byfn.sh
index 6daea11ec7..0c800d071d 100755
--- a/first-network/byfn.sh
+++ b/first-network/byfn.sh
@@ -257,7 +257,7 @@ function networkDown () {
 # configuration
 function replacePrivateKey () {
   # sed on MacOSX does not support -i flag with a null extension. We will use
-  # 't' for our back-up's extension and depete it at the end of the function
+  # 't' for our back-up's extension and delete it at the end of the function
   ARCH=`uname -s | grep Darwin`
   if [ "$ARCH" == "Darwin" ]; then
     OPTS="-it"