diff --git a/Dockerfile b/Dockerfile
index 0f124fe..dc4398c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -16,7 +16,7 @@ RUN mkdir -p /etc/nix && \
     echo "experimental-features = nix-command flakes" >> /etc/nix/nix.conf
 
 # Install devenv (the Nix way, not the apt-get way)
-RUN nix profile install nixpkgs#devenv
+RUN nix profile add nixpkgs#devenv
 
 # Cleanup, otherwise nix panicks
 RUN rm -rf /homeless-shelter