diff --git a/cpu/native/tramp.S b/cpu/native/tramp.S
index 7278e8a039..70d808daef 100644
--- a/cpu/native/tramp.S
+++ b/cpu/native/tramp.S
@@ -21,7 +21,7 @@ __native_sig_leave_tramp:
     call _swapcontext
     addl $8, %esp
 
-    call _enableIRQ /* TODO this call ? */
+    call _irq_enable
 
     movl $0x0, __native_in_isr
     popal
diff --git a/sys/ps/ps.c b/sys/ps/ps.c
index 7df7f0dfe8..d20ee4f274 100644
--- a/sys/ps/ps.c
+++ b/sys/ps/ps.c
@@ -100,7 +100,7 @@ void ps(void)
 #endif
                    sname, queued, p->priority
 #ifdef DEVELHELP
-                   , p->stack_size, stacksz, p->stack_start
+                   , p->stack_size, stacksz, (void *)p->stack_start
 #endif
 #ifdef MODULE_SCHEDSTATISTICS
                    , runtime_ticks, switches