diff --git a/src/server/response.cpp b/src/server/response.cpp
index b5a962fd9..918b04161 100644
--- a/src/server/response.cpp
+++ b/src/server/response.cpp
@@ -151,6 +151,16 @@ std::unique_ptr<Response> Response::build_304(const ETag& etag)
   return response;
 }
 
+ContentResponseBlueprint::ContentResponseBlueprint(const RequestContext* request,
+                         int httpStatusCode,
+                         const std::string& mimeType,
+                         const std::string& templateStr)
+  : m_request(*request)
+  , m_httpStatusCode(httpStatusCode)
+  , m_mimeType(mimeType)
+  , m_template(templateStr)
+{}
+
 std::string ContentResponseBlueprint::getMessage(const std::string& msgId) const
 {
   return getTranslatedString(m_request.get_user_language(), msgId);
diff --git a/src/server/response.h b/src/server/response.h
index b17b3efb7..c44010766 100644
--- a/src/server/response.h
+++ b/src/server/response.h
@@ -121,12 +121,7 @@ public: // functions
   ContentResponseBlueprint(const RequestContext* request,
                            int httpStatusCode,
                            const std::string& mimeType,
-                           const std::string& templateStr)
-    : m_request(*request)
-    , m_httpStatusCode(httpStatusCode)
-    , m_mimeType(mimeType)
-    , m_template(templateStr)
-  {}
+                           const std::string& templateStr);
 
   operator std::unique_ptr<Response>() const
   {