diff --git a/src/coins.cpp b/src/coins.cpp
index 2eadfde95d6..c403e006c85 100644
--- a/src/coins.cpp
+++ b/src/coins.cpp
@@ -14,17 +14,6 @@ TRACEPOINT_SEMAPHORE(utxocache, add);
 TRACEPOINT_SEMAPHORE(utxocache, spent);
 TRACEPOINT_SEMAPHORE(utxocache, uncache);
 
-CCoinsViewBacked::CCoinsViewBacked(CCoinsView* in_view) : base(in_view) { }
-std::optional<Coin> CCoinsViewBacked::GetCoin(const COutPoint& outpoint) const { return base->GetCoin(outpoint); }
-std::optional<Coin> CCoinsViewBacked::PeekCoin(const COutPoint& outpoint) const { return base->PeekCoin(outpoint); }
-bool CCoinsViewBacked::HaveCoin(const COutPoint& outpoint) const { return base->HaveCoin(outpoint); }
-uint256 CCoinsViewBacked::GetBestBlock() const { return base->GetBestBlock(); }
-std::vector<uint256> CCoinsViewBacked::GetHeadBlocks() const { return base->GetHeadBlocks(); }
-void CCoinsViewBacked::SetBackend(CCoinsView& in_view) { base = &in_view; }
-void CCoinsViewBacked::BatchWrite(CoinsViewCacheCursor& cursor, const uint256& block_hash) { base->BatchWrite(cursor, block_hash); }
-std::unique_ptr<CCoinsViewCursor> CCoinsViewBacked::Cursor() const { return base->Cursor(); }
-size_t CCoinsViewBacked::EstimateSize() const { return base->EstimateSize(); }
-
 CoinsViewEmpty& CoinsViewEmpty::Get()
 {
     static CoinsViewEmpty instance;
diff --git a/src/coins.h b/src/coins.h
index c18f7e10f93..e1f1bee757c 100644
--- a/src/coins.h
+++ b/src/coins.h
@@ -374,16 +374,18 @@ protected:
     CCoinsView* base;
 
 public:
-    CCoinsViewBacked(CCoinsView* in_view);
-    std::optional<Coin> GetCoin(const COutPoint& outpoint) const override;
-    std::optional<Coin> PeekCoin(const COutPoint& outpoint) const override;
-    bool HaveCoin(const COutPoint& outpoint) const override;
-    uint256 GetBestBlock() const override;
-    std::vector<uint256> GetHeadBlocks() const override;
-    void SetBackend(CCoinsView& in_view);
-    void BatchWrite(CoinsViewCacheCursor& cursor, const uint256& block_hash) override;
-    std::unique_ptr<CCoinsViewCursor> Cursor() const override;
-    size_t EstimateSize() const override;
+    explicit CCoinsViewBacked(CCoinsView* in_view) : base{Assert(in_view)} {}
+
+    void SetBackend(CCoinsView& in_view) { base = &in_view; }
+
+    std::optional<Coin> GetCoin(const COutPoint& outpoint) const override { return base->GetCoin(outpoint); }
+    std::optional<Coin> PeekCoin(const COutPoint& outpoint) const override { return base->PeekCoin(outpoint); }
+    bool HaveCoin(const COutPoint& outpoint) const override { return base->HaveCoin(outpoint); }
+    uint256 GetBestBlock() const override { return base->GetBestBlock(); }
+    std::vector<uint256> GetHeadBlocks() const override { return base->GetHeadBlocks(); }
+    void BatchWrite(CoinsViewCacheCursor& cursor, const uint256& block_hash) override { base->BatchWrite(cursor, block_hash); }
+    std::unique_ptr<CCoinsViewCursor> Cursor() const override { return base->Cursor(); }
+    size_t EstimateSize() const override { return base->EstimateSize(); }
 };