diff --git a/include/nclog.h b/include/nclog.h
index 76e0f82de5..e80d1a636b 100644
--- a/include/nclog.h
+++ b/include/nclog.h
@@ -8,6 +8,7 @@
 #define NCLOG_H
 
 #include <stdarg.h>
+#include <stdio.h>
 #include "ncexternl.h"
 
 #ifndef NCCATCH
diff --git a/include/ncrc.h b/include/ncrc.h
index 81d62fdffd..12d620b802 100644
--- a/include/ncrc.h
+++ b/include/ncrc.h
@@ -15,6 +15,7 @@ and accessing rc files (e.g. .daprc).
 #include "ncuri.h"
 #include "nclist.h"
 #include "ncbytes.h"
+#include <stdio.h>
 
 /* getenv() keys */
 #define NCRCENVIGNORE "NCRCENV_IGNORE"