diff --git a/jjb/shell/install-deb-cpprest.sh b/jjb/shell/install-deb-cpprest.sh
index 7339b19..2fcf698 100644
--- a/jjb/shell/install-deb-cpprest.sh
+++ b/jjb/shell/install-deb-cpprest.sh
@@ -22,6 +22,6 @@
 
 # stop on error or unbound var, and be chatty
 set -eux
-sudo apt-get update --fix-misisng && sudo apt-get -q -y install libcpprest-dev
+sudo apt-get update --fix-missing && sudo apt-get -y install libcpprest-dev
 
 echo "---> install-deb-cpprest.sh ends"