diff --git a/cpu/native/irq_cpu.c b/cpu/native/irq_cpu.c
index b4b8026dee..e107f24794 100644
--- a/cpu/native/irq_cpu.c
+++ b/cpu/native/irq_cpu.c
@@ -319,6 +319,7 @@ void native_isr_entry(int sig, siginfo_t *info, void *context)
     if (_native_in_syscall == 0) {
         DEBUG("\n\n\t\treturn to _native_sig_leave_tramp\n\n");
 #ifdef __MACH__
+        isr_set_sigmask((ucontext_t *)context);
         _native_in_isr = 1;
         _native_saved_eip = ((ucontext_t *)context)->uc_mcontext->__ss.__eip;
         ((ucontext_t *)context)->uc_mcontext->__ss.__eip = (unsigned int)&_native_sig_leave_tramp;
diff --git a/cpu/native/tramp.S b/cpu/native/tramp.S
index b7798072a0..cd269e3003 100644
--- a/cpu/native/tramp.S
+++ b/cpu/native/tramp.S
@@ -11,6 +11,8 @@ __native_sig_leave_tramp:
     call _swapcontext
     addl $8, %esp
 
+    call _eINT
+
     movl $0x0, __native_in_isr
     popa
     popf