diff --git a/lxc/execute b/lxc/execute
index 5e71f4a..9752781 100755
--- a/lxc/execute
+++ b/lxc/execute
@@ -120,6 +120,9 @@ case "$lang" in
 "emacs" | "elisp" | "el")
     bin=emacs
     ;;
+"lisp" | "clisp" | "commonlisp" | "sbcl")
+    bin=sbcl
+    ;;
 "bash")
     bin=bash
     ;;
diff --git a/lxc/executors/commonlisp b/lxc/executors/commonlisp
new file mode 100755
index 0000000..1db1613
--- /dev/null
+++ b/lxc/executors/commonlisp
@@ -0,0 +1,8 @@
+cd /tmp/$2
+
+if [[ -z $(grep '[^[:space:]]' args.args) ]]; then
+    runuser runner$1 -c "cd /tmp/$2 ; timeout -s KILL 3 sbcl --script code.code"
+else
+    runuser runner$1 -c "cd /tmp/$2 ; cat args.args ; xargs -d '\n' timeout -s KILL 3 sbcl --script code.code"
+fi
+
diff --git a/lxc/test_all_lxc b/lxc/test_all_lxc
index f2068bd..fe079e5 100755
--- a/lxc/test_all_lxc
+++ b/lxc/test_all_lxc
@@ -49,3 +49,5 @@ echo 'testing python2'
 ../execute python2 test2.py
 echo 'testing python3'
 ../execute python3 test3.py
+echo 'testing common lisp'
+../execute sbcl --script test.cl
diff --git a/lxc/tests/test.cl b/lxc/tests/test.cl
new file mode 100755
index 0000000..e05c1c2
--- /dev/null
+++ b/lxc/tests/test.cl
@@ -0,0 +1 @@
+(write-line "hello world")
diff --git a/lxc/versions b/lxc/versions
index 830e69c..a63fa2d 100755
--- a/lxc/versions
+++ b/lxc/versions
@@ -100,3 +100,7 @@ echo '---'
 echo 'typescript'
 lxc-attach --clear-env -n piston -- /bin/bash -l -c "tsc --version"
 echo '---'
+
+echo 'common lisp'
+lxc-attach --clear-env -n piston -- /bin/bash -l -c "sbcl --version"
+echo '---'
diff --git a/readme.md b/readme.md
index 2f6c119..f02105b 100644
--- a/readme.md
+++ b/readme.md
@@ -240,6 +240,12 @@ echo 'export DENO_INSTALL="/opt/.deno"' >> /opt/.profile
 echo 'export PATH="$DENO_INSTALL/bin:$PATH"' >> /opt/.profile
 source /opt/.profile
 
+# install common lisp
+# final binary /usr/bin/sbcl
+# get version: /usr/bin/sbcl --version
+# important notice: use sbcl --script to run a clisp file, sbcl enters the REPL
+apt install -y sbcl
+
 # create runnable users and apply limits
 for i in {1..150}; do
     useradd -M runner$i