diff --git a/unittests/ADT/SCCIteratorTest.cpp b/unittests/ADT/SCCIteratorTest.cpp
index 3f1ba1c5843..be52343fbee 100644
--- a/unittests/ADT/SCCIteratorTest.cpp
+++ b/unittests/ADT/SCCIteratorTest.cpp
@@ -39,8 +39,6 @@ public:
     NodeSubset() : Elements(0) {
       assert(N <= sizeof(BitVector)*CHAR_BIT && "Graph too big!");
     }
-    /// NodeSubset - Copy constructor.
-    NodeSubset(const NodeSubset &other) : Elements(other.Elements) {}
 
     /// Comparison operators.
     bool operator==(const NodeSubset &other) const {