diff --git a/lib/tests/modules.sh b/lib/tests/modules.sh
index 3a23766a17f5366..3301a3d987ee88a 100755
--- a/lib/tests/modules.sh
+++ b/lib/tests/modules.sh
@@ -542,21 +542,21 @@ checkConfigOutput '^"pear\\npear"$' config.twice.raw ./merge-module-with-key.nix
 
 # Declaration positions
 # Line should be present for direct options
-checkConfigOutput '^10$' options.imported.line10.declarationPositions.0.line ./declaration-positions.nix
-checkConfigOutput '/declaration-positions.nix"$' options.imported.line10.declarationPositions.0.file ./declaration-positions.nix
+checkConfigOutput '^14$' options.imported.line14.declarationPositions.0.line ./declaration-positions.nix
+checkConfigOutput '/declaration-positions.nix"$' options.imported.line14.declarationPositions.0.file ./declaration-positions.nix
 # Generated options may not have line numbers but they will at least get the
 # right file
-checkConfigOutput '/declaration-positions.nix"$' options.generated.line18.declarationPositions.0.file ./declaration-positions.nix
-checkConfigOutput '^null$' options.generated.line18.declarationPositions.0.line ./declaration-positions.nix
+checkConfigOutput '/declaration-positions.nix"$' options.generated.line22.declarationPositions.0.file ./declaration-positions.nix
+checkConfigOutput '^null$' options.generated.line22.declarationPositions.0.line ./declaration-positions.nix
 # Submodules don't break it
-checkConfigOutput '^39$' config.submoduleLine34.submodDeclLine39.0.line ./declaration-positions.nix
-checkConfigOutput '/declaration-positions.nix"$' config.submoduleLine34.submodDeclLine39.0.file ./declaration-positions.nix
+checkConfigOutput '^45$' config.submoduleLine38.submodDeclLine45.0.line ./declaration-positions.nix
+checkConfigOutput '/declaration-positions.nix"$' config.submoduleLine38.submodDeclLine45.0.file ./declaration-positions.nix
 # New options under freeform submodules get collected into the parent submodule
 # (consistent with .declarations behaviour, but weird; notably appears in system.build)
-checkConfigOutput '^34|23$' options.submoduleLine34.declarationPositions.0.line ./declaration-positions.nix
-checkConfigOutput '^34|23$' options.submoduleLine34.declarationPositions.1.line ./declaration-positions.nix
+checkConfigOutput '^38|27$' options.submoduleLine38.declarationPositions.0.line ./declaration-positions.nix
+checkConfigOutput '^38|27$' options.submoduleLine38.declarationPositions.1.line ./declaration-positions.nix
 # nested options work
-checkConfigOutput '^30$' options.nested.nestedLine30.declarationPositions.0.line ./declaration-positions.nix
+checkConfigOutput '^34$' options.nested.nestedLine34.declarationPositions.0.line ./declaration-positions.nix
 
 cat <<EOF
 ====== module tests ======
diff --git a/lib/tests/modules/declaration-positions.nix b/lib/tests/modules/declaration-positions.nix
index cefd3b4e516fb7a..b1f8acaecf838e1 100644
--- a/lib/tests/modules/declaration-positions.nix
+++ b/lib/tests/modules/declaration-positions.nix
@@ -1,13 +1,17 @@
 { lib, options, ... }:
-let discardPositions = lib.mapAttrs (k: v: v);
+let
+  discardPositions = lib.mapAttrs (k: v: v);
 in
 # unsafeGetAttrPos is unspecified best-effort behavior, so we only want to consider this test on an evaluator that satisfies some basic assumptions about this function.
 assert builtins.unsafeGetAttrPos "a" { a = true; } != null;
-assert builtins.unsafeGetAttrPos "a" (discardPositions { a = true; }) == null;
+assert
+  builtins.unsafeGetAttrPos "a" (discardPositions {
+    a = true;
+  }) == null;
 {
   imports = [
     {
-      options.imported.line10 = lib.mkOption {
+      options.imported.line14 = lib.mkOption {
         type = lib.types.int;
       };
 
@@ -15,35 +19,39 @@ assert builtins.unsafeGetAttrPos "a" (discardPositions { a = true; }) == null;
       # programs.firefox.nativeMessagingHosts.ff2mpv. We don't expect to get
       # line numbers for these, but we can fall back on knowing the file.
       options.generated = discardPositions {
-        line18 = lib.mkOption {
+        line22 = lib.mkOption {
           type = lib.types.int;
         };
       };
 
-      options.submoduleLine34.extraOptLine23 = lib.mkOption {
+      options.submoduleLine38.extraOptLine27 = lib.mkOption {
         default = 1;
         type = lib.types.int;
       };
     }
   ];
 
-  options.nested.nestedLine30 = lib.mkOption {
+  options.nested.nestedLine34 = lib.mkOption {
     type = lib.types.int;
   };
 
-  options.submoduleLine34 = lib.mkOption {
+  options.submoduleLine38 = lib.mkOption {
     default = { };
     type = lib.types.submoduleWith {
       modules = [
-        ({ options, ... }: {
-          options.submodDeclLine39 = lib.mkOption { };
-        })
+        (
+          { options, ... }:
+          {
+            options.submodDeclLine45 = lib.mkOption { };
+          }
+        )
         { freeformType = with lib.types; lazyAttrsOf (uniq unspecified); }
       ];
     };
   };
 
   config = {
-    submoduleLine34.submodDeclLine39 = (options.submoduleLine34.type.getSubOptions [ ]).submodDeclLine39.declarationPositions;
+    submoduleLine38.submodDeclLine45 =
+      (options.submoduleLine38.type.getSubOptions [ ]).submodDeclLine45.declarationPositions;
   };
 }