diff --git a/Dockerfile b/Dockerfile
index 46c38a3..08cb898 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,7 @@ FROM golang:alpine
 WORKDIR /usr/src/app
 COPY . .
 #RUN apt-get install -y git
-RUN apk add git make
+RUN apk add git make g++
 RUN go mod tidy -e
 RUN go mod vendor
 WORKDIR /usr/src/app/vendor/rpi-rgb-led-matrix/