diff --git a/system/etc.nix b/system/etc.nix
index 15314a3c57a..6d0bf80a240 100644
--- a/system/etc.nix
+++ b/system/etc.nix
@@ -84,7 +84,7 @@ import ../helpers/make-etc.nix {
       source = pkgs.substituteAll {
         src = ./etc/profile.sh;
         inherit systemPath wrapperDir;
-        inherit (pkgs) kernel;
+        inherit (pkgs) kernel glibc;
         timeZone = config.get ["time" "timeZone"];
       };
       target = "profile";
diff --git a/system/etc/profile.sh b/system/etc/profile.sh
index 89af67ea668..9235876c6bb 100644
--- a/system/etc/profile.sh
+++ b/system/etc/profile.sh
@@ -3,6 +3,7 @@ export MODULE_DIR=@kernel@/lib/modules
 export NIX_CONF_DIR=/nix/etc/nix
 export PAGER=less
 export TZ=@timeZone@
+export TZDIR=@glibc@/share/zoneinfo
 export FONTCONFIG_FILE=/etc/fonts/fonts.conf