diff --git a/src/__py_struct_from_dict__.cc b/src/__py_struct_from_dict__.cc
index 39bca213bd3eca32041a2519343d962d6d2f2325..72dd137a567e1b1a26691d2000546af97e935912 100644
--- a/src/__py_struct_from_dict__.cc
+++ b/src/__py_struct_from_dict__.cc
@@ -32,7 +32,8 @@ along with Octave Pythonic; see the file COPYING.  If not, see
 #endif
 
 #include <cinttypes>
-
+// inttypes.h defines the macro "PRIu64" (stefan pofahl)
+#include <inttypes.h>
 #include <Python.h>
 #include <octave/oct.h>