diff --git a/src/libflake/flakeref.cc b/src/libflake/flakeref.cc
index b4a5c106e..a26f269c3 100644
--- a/src/libflake/flakeref.cc
+++ b/src/libflake/flakeref.cc
@@ -33,7 +33,7 @@ struct SourceAccessor;
 
 namespace fetchers {
 struct Settings;
-}  // namespace fetchers
+} // namespace fetchers
 
 #if 0
 // 'dir' path elements cannot start with a '.'. We also reject
diff --git a/src/libflake/include/nix/flake/flake-primops.hh b/src/libflake/include/nix/flake/flake-primops.hh
index a2a3d1612..b333e33d7 100644
--- a/src/libflake/include/nix/flake/flake-primops.hh
+++ b/src/libflake/include/nix/flake/flake-primops.hh
@@ -5,8 +5,8 @@
 namespace nix {
 namespace flake {
 struct Settings;
-}  // namespace flake
-}  // namespace nix
+} // namespace flake
+} // namespace nix
 
 namespace nix::flake::primops {
 
diff --git a/src/libflake/include/nix/flake/flakeref.hh b/src/libflake/include/nix/flake/flakeref.hh
index 65a2dfed5..1af8c5afd 100644
--- a/src/libflake/include/nix/flake/flakeref.hh
+++ b/src/libflake/include/nix/flake/flakeref.hh
@@ -13,9 +13,10 @@
 namespace nix {
 
 class Store;
+
 namespace fetchers {
 struct Settings;
-}  // namespace fetchers
+} // namespace fetchers
 
 typedef std::string FlakeId;
 
diff --git a/src/libflake/lockfile.cc b/src/libflake/lockfile.cc
index fbf17a383..d3dac19c5 100644
--- a/src/libflake/lockfile.cc
+++ b/src/libflake/lockfile.cc
@@ -43,7 +43,7 @@
 
 namespace nix {
 class Store;
-}  // namespace nix
+} // namespace nix
 
 namespace nix::flake {