diff --git a/exempi/tests/utils.cpp b/exempi/tests/utils.cpp
index 64be1ee..ee1c3a9 100644
--- a/exempi/tests/utils.cpp
+++ b/exempi/tests/utils.cpp
@@ -34,6 +34,7 @@
  * OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#include <cstdio>
 
 #include <boost/test/unit_test.hpp>
 
diff --git a/samples/source/XMPFilesCoverage.cpp b/samples/source/XMPFilesCoverage.cpp
index dc9ce41..007c12b 100644
--- a/samples/source/XMPFilesCoverage.cpp
+++ b/samples/source/XMPFilesCoverage.cpp
@@ -17,6 +17,7 @@
 #include <errno.h>
 #include <time.h>
 #include <cstring>
+#include <cstdio>
 
 #define TXMP_STRING_TYPE std::string
 #define XMP_INCLUDE_XMPFILES 1
diff --git a/source/common/XML_Node.cpp b/source/common/XML_Node.cpp
index de3866f..75298a8 100644
--- a/source/common/XML_Node.cpp
+++ b/source/common/XML_Node.cpp
@@ -11,6 +11,7 @@
 
 #include <string.h>
 #include <cstring>
+#include <cstdio>
 #include <map>
 
 // ! Can't include XMP..._Impl.hpp - used by both Core and Files.