diff --git a/octave/Dockerfile b/octave/Dockerfile
index b6b1e73..6477d37 100644
--- a/octave/Dockerfile
+++ b/octave/Dockerfile
@@ -4,7 +4,7 @@ LABEL maintainer="Johannes Schickling <schickling.j@gmail.com>"
 ENV DEBIAN_FRONTEND noninteractive
 
 ADD install.sh install.sh
-RUN sh install.sh && rm install.sh
+RUN bash install.sh && rm install.sh
 
 VOLUME ["/source"]
 WORKDIR /source