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-rw-r--r--third_party/nix/src/libstore/store-api.hh4
1 files changed, 3 insertions, 1 deletions
diff --git a/third_party/nix/src/libstore/store-api.hh b/third_party/nix/src/libstore/store-api.hh
index d4e207128bc2..e8c78b7a64e7 100644
--- a/third_party/nix/src/libstore/store-api.hh
+++ b/third_party/nix/src/libstore/store-api.hh
@@ -747,7 +747,9 @@ struct RegisterStoreImplementation {
   static Implementations* implementations;
 
   RegisterStoreImplementation(OpenStore fun) {
-    if (!implementations) implementations = new Implementations;
+    if (!implementations) {
+      implementations = new Implementations;
+    }
     implementations->push_back(fun);
   }
 };