diff --git a/mlvwm/add_window.c b/mlvwm/add_window.c
index dafb502..1b398d9 100644
--- a/mlvwm/add_window.c
+++ b/mlvwm/add_window.c
@@ -35,6 +35,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 
 #include "mlvwm.h"
 #include "screen.h"
diff --git a/mlvwm/balloon.c b/mlvwm/balloon.c
index 06ec394..adb9117 100644
--- a/mlvwm/balloon.c
+++ b/mlvwm/balloon.c
@@ -7,6 +7,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 
 #include "mlvwm.h"
 #include "screen.h"
diff --git a/mlvwm/mlvwm.h b/mlvwm/mlvwm.h
index f452483..5739634 100644
--- a/mlvwm/mlvwm.h
+++ b/mlvwm/mlvwm.h
@@ -34,7 +34,7 @@
 /*****************************************************************************/
 
 #ifndef _MLVWM_
-#define _MLVFM_
+#define _MLVWM_
 
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
diff --git a/mlvwm/wild.c b/mlvwm/wild.c
index 71805cd..a76ea0c 100644
--- a/mlvwm/wild.c
+++ b/mlvwm/wild.c
@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <string.h>
 
 #ifndef TRUE                    
 #define TRUE	1