diff --git a/libcpu/arm/AT91SAM7X/interrupt.c b/libcpu/arm/AT91SAM7X/interrupt.c
index 62d487403dc24c00359b0cffe8d4918589f910fe..0c37f63ada84ff12c326734f91fea0229bb86d4e 100644
--- a/libcpu/arm/AT91SAM7X/interrupt.c
+++ b/libcpu/arm/AT91SAM7X/interrupt.c
@@ -91,7 +91,7 @@ void rt_hw_interrupt_umask(int vector)
  * @return the old handler
  */
 rt_isr_handler_t rt_hw_interrupt_install(int vector, rt_isr_handler_t handler, 
-									void *param, char *name)
+									void *param, const char *name)
 {
 	rt_isr_handler_t old_handler = RT_NULL;
 	if(vector >= 0 && vector < MAX_HANDLERS)