diff --git a/ci/install.sh b/ci/install.sh
index ee102554..1b928d69 100644
--- a/ci/install.sh
+++ b/ci/install.sh
@@ -1,11 +1,12 @@
 set -euxo pipefail
 
 main() {
-    local tag=$(git ls-remote --tags --refs --exit-code https://github.com/rust-lang-nursery/mdbook \
-                    | cut -d/ -f3 \
-                    | grep -E '^v[0.1.0-9.]+$' \
-                    | sort --version-sort \
-                    | tail -n1)
+    local tag=$(git ls-remote --tags --refs --exit-code \
+                    https://github.com/rust-lang-nursery/mdbook \
+                        | cut -d/ -f3 \
+                        | grep -E '^v[0.1.0-9.]+$' \
+                        | sort --version-sort \
+                        | tail -n1)
     # Temporarily use older version until packages are available for 0.2.2 (or newer)
     local tag="v0.2.1"
     curl -LSfs https://japaric.github.io/trust/install.sh | \