#127 add missing chmod +x docker-build.sh
diff --git a/Dockerfile b/Dockerfile
index b80b216..54966f8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -31,4 +31,5 @@
 ENV PATH="$PATH:$DOTNET_ROOT:$DOTNET_ROOT/tools"
   
 ADD . /logging-log4net
+RUN chmod +x /logging-log4net/docker-build/docker-build.sh
 ADD ./docker-build/.bashrc /root/.bashrc
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