diff --git a/liblouisutdml/liblouisutdml.c b/liblouisutdml/liblouisutdml.c
index c7d80107..de7d0e16 100644
--- a/liblouisutdml/liblouisutdml.c
+++ b/liblouisutdml/liblouisutdml.c
@@ -34,6 +34,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include "louisutdml.h"
+#include <libxml/xmlsave.h>
 #include <libxml/HTMLparser.h>
 #include <libxml/catalog.h>
 
diff --git a/liblouisutdml/transcriber.c b/liblouisutdml/transcriber.c
index ffc628b0..512da8c7 100644
--- a/liblouisutdml/transcriber.c
+++ b/liblouisutdml/transcriber.c
@@ -32,6 +32,8 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <libxml/parser.h>
+#include <libxml/xmlsave.h>
 #include "louisutdml.h"
 
 static xmlNode *firstBrlNode;
diff --git a/liblouisutdml/utd2brf.c b/liblouisutdml/utd2brf.c
index ecfaf18e..e540e78c 100644
--- a/liblouisutdml/utd2brf.c
+++ b/liblouisutdml/utd2brf.c
@@ -30,6 +30,7 @@
    */
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include "louisutdml.h"
 
diff --git a/liblouisutdml/utd2dsbible.c b/liblouisutdml/utd2dsbible.c
index fc1778b3..2ddc527e 100644
--- a/liblouisutdml/utd2dsbible.c
+++ b/liblouisutdml/utd2dsbible.c
@@ -30,6 +30,7 @@
    */
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include "louisutdml.h"
 
diff --git a/liblouisutdml/utd2pef.c b/liblouisutdml/utd2pef.c
index bbbd163f..1d7a3363 100644
--- a/liblouisutdml/utd2pef.c
+++ b/liblouisutdml/utd2pef.c
@@ -30,6 +30,7 @@
    */
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include "louisutdml.h"
 
diff --git a/liblouisutdml/utd2transinxml.c b/liblouisutdml/utd2transinxml.c
index f86b6e50..ad3e877f 100644
--- a/liblouisutdml/utd2transinxml.c
+++ b/liblouisutdml/utd2transinxml.c
@@ -30,6 +30,7 @@
    */
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include "louisutdml.h"
 
diff --git a/liblouisutdml/utd2volumes.c b/liblouisutdml/utd2volumes.c
index 2bf48dfd..05f1c470 100644
--- a/liblouisutdml/utd2volumes.c
+++ b/liblouisutdml/utd2volumes.c
@@ -30,6 +30,7 @@
    */
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include "louisutdml.h"