diff --git a/src/net/SocketAddress.hxx b/src/net/SocketAddress.hxx
index ac934e431..6a75352ac 100644
--- a/src/net/SocketAddress.hxx
+++ b/src/net/SocketAddress.hxx
@@ -74,7 +74,7 @@ public:
 		return address == nullptr;
 	}
 
-	const struct sockaddr *GetAddress() const noexcept {
+	constexpr const struct sockaddr *GetAddress() const noexcept {
 		return address;
 	}