diff --git a/build/Dockerfile.initcontainer b/build/Dockerfile.initcontainer
index 5278e08..bee5b92 100644
--- a/build/Dockerfile.initcontainer
+++ b/build/Dockerfile.initcontainer
@@ -4,6 +4,7 @@ RUN apk add --update \
     bc \
     build-base \
     bison \
+    diffutils \
     flex \
     curl \
     elfutils-dev \