1 files changed, 2 insertions, 2 deletions
diff --git a/demos/modules/gtimer/main.c b/demos/modules/gtimer/main.c
index a0ea6aee..89a6bab7 100644
--- a/demos/modules/gtimer/main.c
+++ b/demos/modules/gtimer/main.c
@@ -51,10 +51,10 @@ int main(void) {
     gtimerInit(&GT2);
  
     /* continious mode - callback1() called without any argument every 250ms */
-    gtimerStart(&GT1, callback1, NULL, TRUE, 250);
+    gtimerStart(&GT1, callback1, 0, TRUE, 250);
  
     /* single shot mode - callback2() called without any argument once after 1s */
-    gtimerStart(&GT2, callback2, NULL, FALSE, 1000);
+    gtimerStart(&GT2, callback2, 0, FALSE, 1000);
 
 	while(TRUE) {
 		gfxSleepMilliseconds(500);