diff --git a/povray_wasm/Dockerfile b/povray_wasm/Dockerfile
index c0971e2..b443b0b 100644
--- a/povray_wasm/Dockerfile
+++ b/povray_wasm/Dockerfile
@@ -21,8 +21,8 @@ RUN git clone https://github.com/emscripten-core/emsdk.git
 
 RUN pwd
 
-#RUN cd emsdk
+RUN cd /emsdk && ./emsdk install latest
 
-#RUN ./emsdk install latest
+RUN cd /emsdk && ./emsdk activate latest
 
-#RUN ./emsdk activate latest
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+RUN cd /emsdk && source ./emsdk_env.sh
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