diff --git a/src/server/request_context.cpp b/src/server/request_context.cpp
index d2e680a..81a4973 100644
--- a/src/server/request_context.cpp
+++ b/src/server/request_context.cpp
@@ -23,6 +23,7 @@
 #include <string.h>
 #include <stdexcept>
 #include <sstream>
+#include <cstdio>
 
 RequestContext::RequestContext(struct MHD_Connection* connection,
                                std::string rootLocation,