diff --git a/pkgs/tools/networking/connman/default.nix b/pkgs/tools/networking/connman/default.nix
index 6c96c344838..5f5bed3cbce 100644
--- a/pkgs/tools/networking/connman/default.nix
+++ b/pkgs/tools/networking/connman/default.nix
@@ -47,7 +47,7 @@ stdenv.mkDerivation rec {
   '';
 
   configureFlags = [
-    "--sysconfdir=\${out}/etc"
+    "--sysconfdir=${placeholder "out"}/etc"
     "--localstatedir=/var"
     "--with-dbusconfdir=${placeholder "out"}/share"
     "--with-dbusdatadir=${placeholder "out"}/share"