diff --git a/povray_wasm/Dockerfile b/povray_wasm/Dockerfile
index b443b0b..017dba0 100644
--- a/povray_wasm/Dockerfile
+++ b/povray_wasm/Dockerfile
@@ -3,6 +3,7 @@ FROM frolvlad/alpine-gxx
 RUN apk update
 
 RUN apk add --update \
+	bash \
 	git \
 	coreutils \
 	build-base \