diff --git a/include/libxml/uri.h b/include/libxml/uri.h
index 2717f69e..eb8631cf 100644
--- a/include/libxml/uri.h
+++ b/include/libxml/uri.h
@@ -11,6 +11,7 @@
 #ifndef __XML_URI_H__
 #define __XML_URI_H__
 
+#include <stdio.h>
 #include <libxml/xmlversion.h>
 #include <libxml/xmlstring.h>
 
diff --git a/include/libxml/xmlschemas.h b/include/libxml/xmlschemas.h
index 1ad5be90..c2af3d70 100644
--- a/include/libxml/xmlschemas.h
+++ b/include/libxml/xmlschemas.h
@@ -16,6 +16,7 @@
 
 #ifdef LIBXML_SCHEMAS_ENABLED
 
+#include <stdio.h>
 #include <libxml/encoding.h>
 #include <libxml/tree.h>
 #include <libxml/xmlerror.h>
diff --git a/include/libxml/xpathInternals.h b/include/libxml/xpathInternals.h
index 870055f9..d1c90dff 100644
--- a/include/libxml/xpathInternals.h
+++ b/include/libxml/xpathInternals.h
@@ -12,6 +12,7 @@
 #ifndef __XML_XPATH_INTERNALS_H__
 #define __XML_XPATH_INTERNALS_H__
 
+#include <stdio.h>
 #include <libxml/xmlversion.h>
 #include <libxml/xpath.h>