diff --git a/scripts/nix-profile-daemon.fish.in b/scripts/nix-profile-daemon.fish.in
index f7cc5239e..fffa06293 100644
--- a/scripts/nix-profile-daemon.fish.in
+++ b/scripts/nix-profile-daemon.fish.in
@@ -3,7 +3,7 @@ if test -z "$HOME" || test -n "$__ETC_PROFILE_NIX_SOURCED"
     exit
 end
 
-set --global __ETC_PROFILE_NIX_SOURCED 1
+set --global --export __ETC_PROFILE_NIX_SOURCED 1
 
 # Local helpers
 
diff --git a/scripts/nix-profile.fish.in b/scripts/nix-profile.fish.in
index f7cc5239e..fffa06293 100644
--- a/scripts/nix-profile.fish.in
+++ b/scripts/nix-profile.fish.in
@@ -3,7 +3,7 @@ if test -z "$HOME" || test -n "$__ETC_PROFILE_NIX_SOURCED"
     exit
 end
 
-set --global __ETC_PROFILE_NIX_SOURCED 1
+set --global --export __ETC_PROFILE_NIX_SOURCED 1
 
 # Local helpers