diff --git a/test/harmonicenergytest.cc b/test/harmonicenergytest.cc
index b0b9466927bf87194a8c862c19577e0f41d7d0e2..a586336b5ef1da08bd8e5b1c4592f4b9b97f2a7a 100644
--- a/test/harmonicenergytest.cc
+++ b/test/harmonicenergytest.cc
@@ -94,7 +94,7 @@ void testUnitVector3d()
     // Set up elements of S^2
     std::vector<TargetSpace> coefficients(dim+1);
 
-    MultiIndex index(dim+1, testPoints.size());
+    ::MultiIndex index(dim+1, testPoints.size());
     int numIndices = index.cycle();
 
     for (int i=0; i<numIndices; i++, ++index) {