diff --git a/Docker/Dockerfile b/Docker/Dockerfile
index 5163fa1..15ddb24 100644
--- a/Docker/Dockerfile
+++ b/Docker/Dockerfile
@@ -4,7 +4,8 @@ WORKDIR /app/src
 RUN git clone https://github.com/mwthinker/MWetris.git MWetris
 
 WORKDIR /app/src/MWetris
-RUN ./Docker/build-server
+RUN cd ./Docker; ls -ltr;
+RUN chmod +x Docker/build-server; Docker/build-server
 RUN mkdir -p /app/bin && mv build/GameServer/GameServer /app/bin/.
 
 WORKDIR /app/bin/