diff --git a/libexec/portzap/commands/portzap-rm b/libexec/portzap/commands/portzap-rm
index 5605a06..62fe83a 100755
--- a/libexec/portzap/commands/portzap-rm
+++ b/libexec/portzap/commands/portzap-rm
@@ -15,6 +15,7 @@ installdir=$2
 
 erase()
 {
+    local dir
     dir="${1}"
     printf "%s  " "${dir}"
     find "${dir}" \