diff --git a/src/ioslaves/http/http.cpp b/src/ioslaves/http/http.cpp
--- a/src/ioslaves/http/http.cpp
+++ b/src/ioslaves/http/http.cpp
@@ -5620,7 +5620,7 @@
         fileSystemFreeSpace(*url);
     }   break;
     default:
-        SlaveBase::virtual_hook(id, data);
+        TCPSlaveBase::virtual_hook(id, data);
     }
 }