diff --git a/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.8 b/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.8
index 47ffd20740f6..9eca8163feda 100644
--- a/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.8
+++ b/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.8
@@ -34,6 +34,7 @@
 .Op Fl -show-trace
 .Op Fl I Va NIX_PATH
 .Op Fl -verbose | v
+.Op Fl -accept-flake-config
 .Op Fl -impure
 .Op Fl -max-jobs | j Va number
 .Op Fl -keep-failed | K
@@ -395,6 +396,7 @@ accepts various Nix-related flags, including
 .Fl -max-jobs Ns ,
 .Fl j Ns ,
 .Fl I Ns ,
+.Fl -accept-flake-config Ns ,
 .Fl -show-trace Ns ,
 .Fl -keep-failed Ns ,
 .Fl -keep-going Ns ,
diff --git a/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh b/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh
index 1748236369e8..f9bda1a64b62 100755
--- a/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh
+++ b/pkgs/os-specific/linux/nixos-rebuild/nixos-rebuild.sh
@@ -82,7 +82,7 @@ while [ "$#" -gt 0 ]; do
         j="$1"; shift 1
         extraBuildFlags+=("$i" "$j")
         ;;
-      -j*|--quiet|--print-build-logs|-L|--no-build-output|-Q| --show-trace|--keep-going|-k|--keep-failed|-K|--fallback|--refresh|--repair|--impure|--offline|--no-net)
+      --accept-flake-config|-j*|--quiet|--print-build-logs|-L|--no-build-output|-Q| --show-trace|--keep-going|-k|--keep-failed|-K|--fallback|--refresh|--repair|--impure|--offline|--no-net)
         extraBuildFlags+=("$i")
         ;;
       --verbose|-v|-vv|-vvv|-vvvv|-vvvvv)