diff --git a/tests/checks/set.fish b/tests/checks/set.fish
index 68d4ab9e9..9d3e9c561 100644
--- a/tests/checks/set.fish
+++ b/tests/checks/set.fish
@@ -995,8 +995,8 @@ set -e nonevent
 # CHECK: ONEVENT VARIABLE ERASE nonevent
 
 mkdir -p empty
-env -u XDG_CONFIG_HOME HOME=$PWD/empty LC_ALL=en_US.UTF-8 $FISH -c 'set -Ux LC_ALL en_US.UTF-8'
-env -u XDG_CONFIG_HOME HOME=$PWD/empty LC_ALL=en_US.UTF-8 $FISH -c 'set -S LC_ALL'
+env XDG_CONFIG_HOME= HOME=$PWD/empty LC_ALL=en_US.UTF-8 $FISH -c 'set -Ux LC_ALL en_US.UTF-8'
+env XDG_CONFIG_HOME= HOME=$PWD/empty LC_ALL=en_US.UTF-8 $FISH -c 'set -S LC_ALL'
 # CHECK: $LC_ALL: set in universal scope, exported, with 1 elements
 # CHECK: $LC_ALL[1]: |en_US.UTF-8|
 # CHECK: $LC_ALL: originally inherited as |en_US.UTF-8|