diff --git a/src/lib/curl/Parser.hxx b/src/lib/curl/Parser.hxx
index 482824d42..96716b757 100644
--- a/src/lib/curl/Parser.hxx
+++ b/src/lib/curl/Parser.hxx
@@ -31,8 +31,6 @@
 
 #include <span>
 
-template<typename T> struct ConstBuffer;
-
 class CurlResponseParser {
 public:
 	virtual ~CurlResponseParser() = default;