diff --git a/pkgs/development/compilers/gcc/common/configure-flags.nix b/pkgs/development/compilers/gcc/common/configure-flags.nix
index c9e9b00f60ed1..25e59148440a0 100644
--- a/pkgs/development/compilers/gcc/common/configure-flags.nix
+++ b/pkgs/development/compilers/gcc/common/configure-flags.nix
@@ -119,7 +119,7 @@ let
       #  or ${with_sysroot}${native_system_header_dir}
       # While native build (build == host == target) uses passed headers
       # path as is:
-      #    ${native_system_header_dir}
+      #    ${with_build_sysroot}${native_system_header_dir}
       #
       # Nixpkgs uses flat directory structure for both native and cross
       # cases. As a result libc headers don't get found for cross case