diff --git a/src/policy/feerate.h b/src/policy/feerate.h
index 8f13f8d0dca..c397a5c23ac 100644
--- a/src/policy/feerate.h
+++ b/src/policy/feerate.h
@@ -38,7 +38,7 @@ public:
     /** Fee rate of 0 satoshis per 0 vB */
     CFeeRate() = default;
     template<std::integral I> // Disallow silent float -> int conversion
-    explicit CFeeRate(const I m_feerate_kvb) : m_feerate(FeePerVSize(m_feerate_kvb, 1000)) {}
+    explicit constexpr CFeeRate(const I m_feerate_kvb) : m_feerate(FeePerVSize(m_feerate_kvb, 1000)) {}
 
     /**
      * Construct a fee rate from a fee in satoshis and a vsize in vB.
diff --git a/src/test/util/chainstate.h b/src/test/util/chainstate.h
index aeec14ccb19..7846726d360 100644
--- a/src/test/util/chainstate.h
+++ b/src/test/util/chainstate.h
@@ -17,7 +17,7 @@
 
 #include <univalue.h>
 
-const auto NoMalleation = [](AutoFile& file, node::SnapshotMetadata& meta){};
+inline constexpr auto NoMalleation = [](AutoFile& file, node::SnapshotMetadata& meta){};
 
 /**
  * Create and activate a UTXO snapshot, optionally providing a function to