diff --git a/include/llvm/Analysis/DSNode.h b/include/llvm/Analysis/DSNode.h
index 956bcbdab9f..6d2383025d6 100644
--- a/include/llvm/Analysis/DSNode.h
+++ b/include/llvm/Analysis/DSNode.h
@@ -7,6 +7,8 @@
 #ifndef LLVM_ANALYSIS_DSNODE_H
 #define LLVM_ANALYSIS_DSNODE_H
 
+#include "llvm/Analysis/DSSupport.h"
+
 template<typename BaseType>
 class DSNodeIterator;          // Data structure graph traversal iterator
 
diff --git a/include/llvm/Analysis/DataStructure/DSNode.h b/include/llvm/Analysis/DataStructure/DSNode.h
index 956bcbdab9f..6d2383025d6 100644
--- a/include/llvm/Analysis/DataStructure/DSNode.h
+++ b/include/llvm/Analysis/DataStructure/DSNode.h
@@ -7,6 +7,8 @@
 #ifndef LLVM_ANALYSIS_DSNODE_H
 #define LLVM_ANALYSIS_DSNODE_H
 
+#include "llvm/Analysis/DSSupport.h"
+
 template<typename BaseType>
 class DSNodeIterator;          // Data structure graph traversal iterator