diff --git a/coin/provisioning/qtci-macos-10.13-x86_64/26-ninja.sh b/coin/provisioning/qtci-macos-10.13-x86_64/26-ninja.sh
new file mode 100755
index 00000000..c9d3e309
--- /dev/null
+++ b/coin/provisioning/qtci-macos-10.13-x86_64/26-ninja.sh
@@ -0,0 +1,5 @@
+#!/usr/bin/env bash
+
+set -ex
+
+brew install ninja