diff --git a/src/output/plugins/httpd/HttpdClient.cxx b/src/output/plugins/httpd/HttpdClient.cxx
index cd2adc860..3797c3d26 100644
--- a/src/output/plugins/httpd/HttpdClient.cxx
+++ b/src/output/plugins/httpd/HttpdClient.cxx
@@ -28,6 +28,7 @@
 
 #include <assert.h>
 #include <string.h>
+#include <stdio.h>
 
 HttpdClient::~HttpdClient()
 {