diff --git a/src/nix/add-root.cc b/src/nix/add-root.cc
index 6773ebb05..541cf2559 100644
--- a/src/nix/add-root.cc
+++ b/src/nix/add-root.cc
@@ -9,7 +9,7 @@
 
 using namespace nix;
 
-struct CmdAddRoot: StoreCommand
+struct CmdAddRoot : StoreCommand
 {
     std::vector<std::string> links;
     bool checkResults = true;
@@ -31,17 +31,20 @@ struct CmdAddRoot: StoreCommand
     std::string doc() override
     {
         return
-          #include "add-root.md"
-          ;
+#include "add-root.md"
+            ;
     }
 
-    Category category() override { return catSecondary; }
+    Category category() override
+    {
+        return catSecondary;
+    }
 
     void run(ref<Store> store) override
     {
         auto & indirectRootStore = require<IndirectRootStore>(*store);
 
-        for (auto &link: links) {
+        for (auto & link : links) {
             auto indirectPath = absPath(link);
             if (indirectRootStore.isInStore(indirectPath)) {
                 throw Error("Indirect root '%1%' must not be in the Nix store", link);