diff --git a/src/doc/build-man.sh b/src/doc/build-man.sh
index 85f7e526de4..7b1330b58f7 100755
--- a/src/doc/build-man.sh
+++ b/src/doc/build-man.sh
@@ -12,6 +12,8 @@
 
 set -e
 
+cd "$(dirname "${BASH_SOURCE[0]}")"
+
 OPTIONS="--url https://doc.rust-lang.org/cargo/commands/ \
     --man rustc:1=https://doc.rust-lang.org/rustc/index.html \
     --man rustdoc:1=https://doc.rust-lang.org/rustdoc/index.html"