diff --git a/autodeploy/symlink.sh b/autodeploy/symlink.sh
index 569bcbd..ef0553f 100755
--- a/autodeploy/symlink.sh
+++ b/autodeploy/symlink.sh
@@ -1,11 +1,16 @@
 #!/bin/bash
 
+set -euo pipefail
+
+
 function symlink() {
     local target="$1"
     local link="$2"
 
     local arrow="$link -> $target"
-    local current_target=$(readlink "$link")
+
+    local current_target
+    current_target=$(readlink "$link")
 
     # link is already correct
     if [ -L "$link" ] && [ "$current_target" == "$target" ]; then