diff --git a/applets/pbot-vm/Dockerfile b/applets/pbot-vm/Dockerfile
index 71fc161d..a4d9d19a 100644
--- a/applets/pbot-vm/Dockerfile
+++ b/applets/pbot-vm/Dockerfile
@@ -1,7 +1,7 @@
 FROM perl:5.34
 
 # Install system dependencies.
-RUN apt-get update && apt-get install -y clang gcc clang g++ tcl ghc git cpanminus dos2unix policykit-1 fortune-mod
+RUN apt-get update && apt-get install -y clang gcc clang g++ tcl ghc git cpanminus dos2unix policykit-1 fortune-mod astyle
 
 # Need the sources.
 COPY . /opt/pbot