diff --git a/diractions.plugin.zsh b/diractions.plugin.zsh
index f3e8cd5..162b7bf 100644
--- a/diractions.plugin.zsh
+++ b/diractions.plugin.zsh
@@ -64,6 +64,7 @@ declare -gA _DIRACTION_HELP
 -set-default DIRACTION_BROWSER # §todo: update
 -set-default DIRACTION_AUTO_CONFIG true
 -set-default DIRACTION_EXPORT_VARIABLES false
+-set-default DIRACTION_READONLY_VARIABLES false # §todo: experiment, and maybe make it default (or maybe not: could not unset then)
 
 # --
 if [[ -z $DIRACTION_DISPATCH_WHITELIST ]]; then
@@ -161,7 +162,9 @@ function diraction-create() {
         else
             eval "$var=${(q)value}"
         fi
-        # §maybe: readonly probably better?? (maybe not: could not unset then)
+        if [[ "$DIRACTION_READONLY_VARIABLES" =~ ^(true|yes|y)$ ]] ; then
+            readonly $var
+        fi
     fi
     # create an alias: call to the _diraction-dispach function with directory as argument
     alias "$alias"="_diraction-dispatch \"$dir\""
diff --git a/test/diraction_integration_shpec.zsh b/test/diraction_integration_shpec.zsh
index 1249b10..4b954e4 100755
--- a/test/diraction_integration_shpec.zsh
+++ b/test/diraction_integration_shpec.zsh
@@ -56,4 +56,25 @@ BASIC_SCRIPT
 
     assert equal "$output" "/tmp\n/tmp\n/tmp\ndir-tmp:/tmp:"
   end
+
+  it "basic script with readonly"
+    output="$(zsh 2>&1 << BASIC_SCRIPT
+      set -e
+      DIRACTION_AUTO_CONFIG=false
+      DIRACTION_READONLY_VARIABLES=true
+      source $plugin
+
+      diraction-batch-create << "DIR"
+        ro-dir-tmp /tmp
+DIR
+      echo \$_ro_dir_tmp
+      readonly _ro_dir_tmp
+      _ro_dir_tmp="sorry you can't"
+BASIC_SCRIPT
+)"
+    _status=$?
+    assert equal $_status 1
+
+    assert equal "$output" "/tmp\nzsh: read-only variable: _ro_dir_tmp"
+  end
 end