diff --git a/backend/src/langs.ts b/backend/src/langs.ts
index 385fcc6..a669c11 100644
--- a/backend/src/langs.ts
+++ b/backend/src/langs.ts
@@ -954,6 +954,9 @@ func main() {
     scope: {
       code: `x = 123 * 234;`,
     },
+    lsp: {
+      start: `JAVA_OPTS="-Djava.util.prefs.systemRoot=$PWD/.java -Djava.util.prefs.userRoot=$PWD/.java/.userPrefs" java -jar /opt/groovy/language-server.jar`,
+    },
     template: `print "Hello, world!";
 `,
     timeout: 15,
diff --git a/scripts/docker-install-phase6.bash b/scripts/docker-install-phase6.bash
index cf2c190..dcb1fd5 100755
--- a/scripts/docker-install-phase6.bash
+++ b/scripts/docker-install-phase6.bash
@@ -24,6 +24,15 @@ mv _build/default/bin/erlang_ls /usr/local/bin/erlang_ls
 popd >/dev/null
 rm -rf erlang_ls
 
+# Groovy
+git clone https://github.com/prominic/groovy-language-server.git
+pushd groovy-language-server >/dev/null
+./gradlew build
+mkdir /opt/groovy
+mv build/libs/groovy-language-server-all.jar /opt/groovy/language-server.jar
+popd >/dev/null
+rm -rf groovy-language-server
+
 # Hexagony
 git clone https://github.com/m-ender/hexagony.git /opt/hexagony