diff --git a/keyserver/bash/source-nvm.sh b/keyserver/bash/source-nvm.sh
index 76a4c5247..632ba7a08 100755
--- a/keyserver/bash/source-nvm.sh
+++ b/keyserver/bash/source-nvm.sh
@@ -1,13 +1,17 @@
 #!/usr/bin/env bash
 
 # source as: logged in user
 # source from: package.json (via npm/yarn scripts)
 
 unset PREFIX
+
+# Nix controls the version of node within the development shell
+[ -n "$IN_NIX_SHELL" ] && exit 0
+
 # Intel Mac
 [ -s "/usr/local/opt/nvm/nvm.sh" ] && . "/usr/local/opt/nvm/nvm.sh"
 # ARM-based Mac
 [ -s "/opt/homebrew/opt/nvm/nvm.sh" ] && . "/opt/homebrew/opt/nvm/nvm.sh"
 # Ubuntu
 [ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh"
 nvm install --no-progress