diff --git a/src/libstore/build/local-derivation-goal.cc b/src/libstore/build/local-derivation-goal.cc
index 9be780212..a5fe10d2a 100644
--- a/src/libstore/build/local-derivation-goal.cc
+++ b/src/libstore/build/local-derivation-goal.cc
@@ -1705,11 +1705,7 @@ void LocalDerivationGoal::runChild()
 
         commonChildInit();
 
-        try {
-            setupSeccomp();
-        } catch (...) {
-            if (buildUser) throw;
-        }
+        setupSeccomp();
 
         bool setUser = true;