diff --git a/etc/profile.sh b/etc/profile.sh
index 30fc8217fdf..3696012f61b 100644
--- a/etc/profile.sh
+++ b/etc/profile.sh
@@ -1,5 +1,8 @@
 export PATH=@wrapperDir@:/var/run/current-system/sw/bin:/var/run/current-system/sw/sbin
-export LD_LIBRARY_PATH=@nssModulesPath@:/var/run/current-system/sw/lib
+export LD_LIBRARY_PATH=/var/run/current-system/sw/lib
+if test -n "@nssModulesPath@"; then
+    LD_LIBRARY_PATH=@nssModulesPath@:$LD_LIBRARY_PATH
+fi
 export MODULE_DIR=@modulesTree@/lib/modules
 export NIXPKGS_CONFIG=/nix/etc/config.nix
 export PAGER="less -R"