diff --git a/tests/Test_dwf_hdcr.cc b/tests/Test_dwf_hdcr.cc
index 8d1a5fce..bafdb639 100644
--- a/tests/Test_dwf_hdcr.cc
+++ b/tests/Test_dwf_hdcr.cc
@@ -1,6 +1,6 @@
 #include <Grid.h>
 #include <algorithms/iterative/PrecGeneralisedConjugateResidual.h>
-#include <algorithms/iterative/PrecConjugateResidual.h>
+//#include <algorithms/iterative/PrecConjugateResidual.h>
 
 using namespace std;
 using namespace Grid;