diff --git a/lib/Analysis/DataStructure/IPModRef.cpp b/lib/Analysis/DataStructure/IPModRef.cpp
index 3832cb3..ab9b770 100644
--- a/lib/Analysis/DataStructure/IPModRef.cpp
+++ b/lib/Analysis/DataStructure/IPModRef.cpp
@@ -148,7 +148,8 @@
     // Perform the merging now of the graph for the callee, which will come with
     // mod/ref bits set...
     Result->mergeInGraph(CS, IPModRefObj.getBUDSGraph(*F),
-                         DSGraph::StripAllocaBit);
+                         DSGraph::StripAllocaBit | DSGraph::DontCloneCallNodes |
+                         DSGraph::DontCloneAuxCallNodes);
 
   } else {
     std::cerr << "IP Mod/Ref indirect call not implemented yet: "
diff --git a/lib/Analysis/IPA/IPModRef.cpp b/lib/Analysis/IPA/IPModRef.cpp
index 3832cb3..ab9b770 100644
--- a/lib/Analysis/IPA/IPModRef.cpp
+++ b/lib/Analysis/IPA/IPModRef.cpp
@@ -148,7 +148,8 @@
     // Perform the merging now of the graph for the callee, which will come with
     // mod/ref bits set...
     Result->mergeInGraph(CS, IPModRefObj.getBUDSGraph(*F),
-                         DSGraph::StripAllocaBit);
+                         DSGraph::StripAllocaBit | DSGraph::DontCloneCallNodes |
+                         DSGraph::DontCloneAuxCallNodes);
 
   } else {
     std::cerr << "IP Mod/Ref indirect call not implemented yet: "