diff --git a/builder/dockerfile.alpine_319.apk.build b/builder/dockerfile.alpine_319.apk.build
index fcec8e3..42e3513 100644
--- a/builder/dockerfile.alpine_319.apk.build
+++ b/builder/dockerfile.alpine_319.apk.build
@@ -3,6 +3,8 @@ FROM alpine:3.19
 RUN apk add shadow bash
 RUN apk add abuild sudo less
 
+SHELL ["/bin/bash", "-c"]
+
 ENV HOME /src/alpine
 WORKDIR $HOME/kasmvncserver