diff --git a/Dockerfile b/Dockerfile
index e853d41..d4ec8c1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -53,7 +53,7 @@ RUN ln -s ./conf/mob_names_en.txt mob_names.txt
 RUN ln -s ./conf/mob_proto.txt mob_proto.txt
 
 # Set up default environment variables
-ENV PUBLIC_BIND_IP 0.0.0.0
-ENV INTERNAL_BIND_IP 0.0.0.0
+ENV PUBLIC_BIND_IP=0.0.0.0
+ENV INTERNAL_BIND_IP=0.0.0.0
 
 ENTRYPOINT ["/usr/bin/bash", "docker-entrypoint.sh"]