diff --git a/builder.Dockerfile b/builder.Dockerfile
index 0c9600a..fb468a7 100644
--- a/builder.Dockerfile
+++ b/builder.Dockerfile
@@ -15,7 +15,6 @@ RUN apt-get install -y --no-install-recommends \
     cmake \
     build-essential \
     gcc \
-    g++-multilib \
     locales \
     make \
     ruby \