diff --git a/match.c b/match.c
index 754d2a0ba..91083470a 100644
--- a/match.c
+++ b/match.c
@@ -40,6 +40,7 @@
 #include <sys/types.h>
 
 #include <ctype.h>
+#include <stdarg.h>
 #include <stdlib.h>
 #include <string.h>
 #include <stdio.h>
diff --git a/sftp-glob.c b/sftp-glob.c
index c196c51e5..feba0a23c 100644
--- a/sftp-glob.c
+++ b/sftp-glob.c
@@ -23,6 +23,7 @@
 #endif
 
 #include <dirent.h>
+#include <stdarg.h>
 #include <stdlib.h>
 #include <string.h>
 
diff --git a/umac.c b/umac.c
index ccae39f30..e4929bcb7 100644
--- a/umac.c
+++ b/umac.c
@@ -74,6 +74,7 @@
 #include "includes.h"
 #include <sys/types.h>
 #include <string.h>
+#include <stdarg.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <stddef.h>