diff --git a/model/ccnx-interest-header.cc b/model/ccnx-interest-header.cc
index cc21412..6539ff8 100644
--- a/model/ccnx-interest-header.cc
+++ b/model/ccnx-interest-header.cc
@@ -183,9 +183,9 @@
 }
 
 uint32_t
-CcnxInterestHeader::IsNack () const
+CcnxInterestHeader::GetNack () const
 {
-  return m_nack;
+  return m_nackType;
 }
 
 uint32_t