diff --git a/pinata-build-sshd.sh b/pinata-build-sshd.sh
index 23e9a85..f846da4 100755
--- a/pinata-build-sshd.sh
+++ b/pinata-build-sshd.sh
@@ -1,4 +1,4 @@
 #!/bin/sh
 
-cd /usr/local/share/pinata-ssh-agent
+cd ${PREFIX:-/usr/local}/share/pinata-ssh-agent
 docker build -t pinata-sshd .