diff --git a/pmd-dist/src/main/resources/scripts/pmd b/pmd-dist/src/main/resources/scripts/pmd
index 926238f9da2..50010b43109 100755
--- a/pmd-dist/src/main/resources/scripts/pmd
+++ b/pmd-dist/src/main/resources/scripts/pmd
@@ -52,7 +52,7 @@ set_lib_dir() {
     if [ -L "$0" ]; then
       local script_real_loc=$(readlink "$0")
     else
-      local script_real_loc=$0
+      local script_real_loc=${BASH_SOURCE[0]:-${(%):-%x}}
     fi
     local script_dir=$(dirname "${script_real_loc}")