--- a/libConsole/cross_getch.c
+++ b/libConsole/cross_getch.c
@@ -22,7 +22,7 @@
 #else
 #include <termios.h>
 
-int cross_getch ()
+static int cross_getch ()
 {
     int ch = -1, fd = 0;
     struct termios neu, alt;