diff --git a/python/idautils.py b/python/idautils.py
index b8d110e..ed840dc 100644
--- a/python/idautils.py
+++ b/python/idautils.py
@@ -219,8 +219,9 @@ def Functions(start=None, end=None):
     if not func:
         func = idaapi.get_next_func(start)
     while func and func.startEA < end:
-        yield func.startEA
-        func = idaapi.get_next_func(func.startEA)
+        startea = func.startEA
+        yield startea
+        func = idaapi.get_next_func(startea)
 
 
 def Chunks(start):
@@ -546,4 +547,4 @@ class _cpu(object):
         return idc.SetRegValue(value, name)
 
 cpu = _cpu()
-procregs = _procregs()
\ No newline at end of file
+procregs = _procregs()