diff --git a/modules/system/activation-scripts.nix b/modules/system/activation-scripts.nix
index 1b99e4c..1a8cfca 100644
--- a/modules/system/activation-scripts.nix
+++ b/modules/system/activation-scripts.nix
@@ -40,7 +40,7 @@ in
       #! ${stdenv.shell}
       set -e
       set -o pipefail
-      export PATH="${pkgs.gnugrep}/bin:${pkgs.coreutils}/bin:@out@/sw/bin:/usr/bin:/bin"
+      export PATH="${pkgs.gnugrep}/bin:${pkgs.coreutils}/bin:@out@/sw/bin:/usr/bin:/bin:/usr/sbin:/sbin"
 
       systemConfig=@out@
 
diff --git a/pkgs/darwin-installer/default.nix b/pkgs/darwin-installer/default.nix
index 169509c..5346396 100644
--- a/pkgs/darwin-installer/default.nix
+++ b/pkgs/darwin-installer/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation {
     set -e
 
     orig_path="$PATH"
-    export PATH="${pkgs.openssh}/bin:/usr/bin:/bin"  # ssh in case nix needs it
+    export PATH="${pkgs.openssh}/bin:/usr/bin:/bin:/usr/sbin:/sbin"  # ssh in case nix needs it
 
     action=switch
     while [ "$#" -gt 0 ]; do