diff --git a/images/0.33.0/Dockerfile b/images/0.33.0/Dockerfile
index 44151c3..a7201f9 100644
--- a/images/0.33.0/Dockerfile
+++ b/images/0.33.0/Dockerfile
@@ -23,10 +23,10 @@ RUN npm install pm2 -g
 # download project
 RUN mkdir -p /var/www \
     && cd /var/www \
-    && wget -O cezerin.zip https://github.com/cezerin/cezerin/archive/v$CEZERIN_VERSION.zip \
+    && wget -O cezerin.zip https://github.com/cezerin/cezerin/archive/v${CEZERIN_VERSION}.zip \
     && unzip cezerin.zip \
     && rm cezerin.zip \
-    && mv cezerin-$CEZERIN_VERSION cezerin
+    && mv cezerin-${CEZERIN_VERSION} cezerin
 
 # overwrite config
 COPY config/* /var/www/cezerin/config/