diff --git a/lib/ftp.c b/lib/ftp.c
index 4224c533ab0237b11f07dbbd12e23d73ba588844..8b4c205fd754ba33cde9b1daaa1edf5f92b4d888 100644
--- a/lib/ftp.c
+++ b/lib/ftp.c
@@ -85,6 +85,7 @@
 #include "progress.h"
 #include "download.h"
 #include "escape.h"
+#include "http.h" /* for HTTP proxy tunnel stuff */
 
 #ifdef KRB4
 #include "security.h"