diff --git a/Dockerfile b/Dockerfile
index fdf8d88..4bd86ba 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -28,7 +28,7 @@ LABEL \
     maintainer="BioSimulators Team <info@biosimulators.org>"
 
 # Install GINsim
-RUN mkdir /usr/share/man/man1/ \
+RUN mkdir -p /usr/share/man/man1/ \
     && apt-get update -y \
     && apt-get install -y --no-install-recommends \
         default-jre \