diff --git a/mxml.h b/mxml.h
index 5560b3b..c7177f8 100755
--- a/mxml.h
+++ b/mxml.h
@@ -11,6 +11,9 @@
 
 /*------------------------------------------------------------------*/
 
+#ifndef _MXML_H_
+#define _MXML_H_
+
 #define MXML_NAME_LENGTH 64
 
 #define ELEMENT_NODE                  1
@@ -130,4 +133,5 @@ void mxml_basename(char *path);
 }
 #endif
 
+#endif /* _MXML_H_ */
 /*------------------------------------------------------------------*/
diff --git a/strlcpy.h b/strlcpy.h
index 4a2f285..8c4720b 100755
--- a/strlcpy.h
+++ b/strlcpy.h
@@ -9,6 +9,9 @@
 
 \********************************************************************/
 
+#ifndef _STRLCPY_H_
+#define _STRLCPY_H_
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -27,3 +30,5 @@ size_t EXPRT strlcat(char *dst, const char *src, size_t size);
 #ifdef __cplusplus
 }
 #endif
+
+#endif /*_STRLCPY_H_ */