diff --git a/src/futils.cpp b/src/futils.cpp
index 46da07e9..83964050 100644
--- a/src/futils.cpp
+++ b/src/futils.cpp
@@ -46,8 +46,7 @@
   # include <unistd.h>                     // for stat()
 #endif
 
-
-
+#include <cstdio>
 #include <cerrno>
 #include <sstream>
 #include <cstring>
diff --git a/src/image_int.cpp b/src/image_int.cpp
index 109639f1..ea50159e 100644
--- a/src/image_int.cpp
+++ b/src/image_int.cpp
@@ -23,6 +23,7 @@
 #include <cstddef>
 #include <cstring>
 #include <vector>
+#include <cstdio>
 
 namespace Exiv2
 {
diff --git a/src/value.cpp b/src/value.cpp
index 69d73ace..4df92221 100644
--- a/src/value.cpp
+++ b/src/value.cpp
@@ -40,6 +40,7 @@
 #include <cassert>
 #include <cstring>
 #include <ctime>
+#include <cstdarg>
 #include <cstdio>
 #include <cstdlib>
 #include <ctype.h>