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-rw-r--r--scripts/install-nix-from-closure.sh2
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/install-nix-from-closure.sh b/scripts/install-nix-from-closure.sh
index fc999d336d1f..35926f3dac94 100644
--- a/scripts/install-nix-from-closure.sh
+++ b/scripts/install-nix-from-closure.sh
@@ -12,7 +12,7 @@ if ! [ -e "$self/.reginfo" ]; then
     echo "$0: incomplete installer (.reginfo is missing)" >&2
 fi
 
-if [ -z "$USER" ]; then
+if [ -z "$USER" ] && ! USER=$(id -u -n); then
     echo "$0: \$USER is not set" >&2
     exit 1
 fi