diff --git a/include/asprintf.h b/include/asprintf.h
index ce26aed..3ed35be 100644
--- a/include/asprintf.h
+++ b/include/asprintf.h
@@ -5,6 +5,8 @@
 #include <config.h>
 #endif
 
+#include <stdio.h>
+
 #ifndef HAVE_VASPRINTF
 static inline int vasprintf(char **PTR, const char *TEMPLATE, va_list AP)
 {
diff --git a/src/reverse_proxy.c b/src/reverse_proxy.c
index ae8e9f5..3f0a839 100644
--- a/src/reverse_proxy.c
+++ b/src/reverse_proxy.c
@@ -35,6 +35,7 @@
 #include "lockdown.h"
 #include "common/debug.h"
 #include "endianness.h"
+#include "asprintf.h"
 
 #ifndef ECONNRESET
 #define ECONNRESET 108