diff --git a/arch/powerpc/xmon/nonstdio.c b/arch/powerpc/xmon/nonstdio.c
index a225d8046652..2209485e6564 100644
--- a/arch/powerpc/xmon/nonstdio.c
+++ b/arch/powerpc/xmon/nonstdio.c
@@ -23,7 +23,7 @@ static char line[256];
 static char *lineptr;
 static int lineleft;
 
-int xmon_getchar(void)
+static int xmon_getchar(void)
 {
 	int c;
 
diff --git a/arch/powerpc/xmon/nonstdio.h b/arch/powerpc/xmon/nonstdio.h
index 8799ccf29117..321284f4281d 100644
--- a/arch/powerpc/xmon/nonstdio.h
+++ b/arch/powerpc/xmon/nonstdio.h
@@ -4,7 +4,6 @@
 #define putchar	xmon_putchar
 
 extern int xmon_putchar(int c);
-extern int xmon_getchar(void);
 extern void xmon_puts(const char *);
 extern char *xmon_gets(char *, int);
 extern void xmon_printf(const char *, ...);