2 files changed, 2 insertions, 13 deletions
diff --git a/src/nix-env/profiles.hh b/src/nix-env/profiles.hh
index a64258dae224..30d2376d998c 100644
--- a/src/nix-env/profiles.hh
+++ b/src/nix-env/profiles.hh
@@ -1,5 +1,4 @@
-#ifndef __PROFILES_H
-#define __PROFILES_H
+#pragma once
 
 #include "types.hh"
 #include "pathlocks.hh"
@@ -54,6 +53,3 @@ void lockProfile(PathLocks & lock, const Path & profile);
 string optimisticLockProfile(const Path & profile);
 
 }
-
-
-#endif /* !__PROFILES_H */
diff --git a/src/nix-env/user-env.hh b/src/nix-env/user-env.hh
index 4125d821732f..f188efe9b4a9 100644
--- a/src/nix-env/user-env.hh
+++ b/src/nix-env/user-env.hh
@@ -1,5 +1,4 @@
-#ifndef __USER_ENV_H
-#define __USER_ENV_H
+#pragma once
 
 #include "get-drvs.hh"
 
@@ -12,9 +11,3 @@ bool createUserEnv(EvalState & state, DrvInfos & elems,
     const string & lockToken);
 
 }
-
-#endif /* !__USER_ENV_H */
-
-
-
-