1 files changed, 1 insertions, 1 deletions
diff --git a/src/pubkey.h b/src/pubkey.h
index ae34ddd0af..b4666aad22 100644
--- a/src/pubkey.h
+++ b/src/pubkey.h
@@ -254,7 +254,7 @@ public:
     bool IsNull() const { return m_keydata.IsNull(); }
 
     /** Construct an x-only pubkey from exactly 32 bytes. */
-    explicit XOnlyPubKey(Span<const unsigned char> bytes);
+    constexpr explicit XOnlyPubKey(std::span<const unsigned char> bytes) : m_keydata{bytes} {}
 
     /** Construct an x-only pubkey from a normal pubkey. */
     explicit XOnlyPubKey(const CPubKey& pubkey) : XOnlyPubKey(Span{pubkey}.subspan(1, 32)) {}