diff --git a/changes/fix_install_guide.md b/changes/fix_install_guide.md
new file mode 100644
index 000000000..711587363
--- /dev/null
+++ b/changes/fix_install_guide.md
@@ -0,0 +1 @@
+Fix error in installation guide
diff --git a/docs/installation.md b/docs/installation.md
index 064b962ec..89c5ddf80 100644
--- a/docs/installation.md
+++ b/docs/installation.md
@@ -98,9 +98,8 @@ On a Linux server, create a systemd configuration in `/lib/systemd/system/shesmu
     Description=Shesmu decision-action server
 
     [Service]
-    Environment=MODULEPATH=/srv/shesmu/*
     Environment=SHESMU_DATA=/srv/shesmu
-    ExecStart=/usr/bin/java ca.on.oicr.gsi.shesmu.server/ca.on.oicr.gsi.shesmu.Server
+    ExecStart=/usr/bin/java -p /srv/shesmu/* -m ca.on.oicr.gsi.shesmu.server/ca.on.oicr.gsi.shesmu.Server
     KillMode=process
 
     [Install]