2 files changed, 3 insertions, 3 deletions
diff --git a/src/libstore/build/derivation-goal.hh b/src/libstore/build/derivation-goal.hh
index 3885afe4a..6dd58afd2 100644
--- a/src/libstore/build/derivation-goal.hh
+++ b/src/libstore/build/derivation-goal.hh
@@ -63,7 +63,7 @@ struct InitialOutputStatus {
 struct InitialOutput {
     bool wanted;
     Hash outputHash;
-    std::optional<InitialOutputStatus> known;
+    std::optional<InitialOutputStatus> known = {};
 };
 
 /**
diff --git a/src/libstore/build/goal.hh b/src/libstore/build/goal.hh
index de1c92c85..29540dcd3 100644
--- a/src/libstore/build/goal.hh
+++ b/src/libstore/build/goal.hh
@@ -88,8 +88,8 @@ protected:
 public:
     struct [[nodiscard]] WorkResult {
         ExitCode exitCode;
-        BuildResult result;
-        std::shared_ptr<Error> ex;
+        BuildResult result = {};
+        std::shared_ptr<Error> ex = {};
         bool permanentFailure = false;
         bool timedOut = false;
         bool hashMismatch = false;