diff --git a/defer/BackwardTest.cpp b/moses/LM/BackwardTest.cpp
similarity index 100%
rename from defer/BackwardTest.cpp
rename to moses/LM/BackwardTest.cpp
diff --git a/moses/LM/Jamfile b/moses/LM/Jamfile
index fa3cfa6d7..8c155c5d9 100644
--- a/moses/LM/Jamfile
+++ b/moses/LM/Jamfile
@@ -113,6 +113,6 @@ alias macros : : : : <define>$(lmmacros) ;
 
 #Unit test for Backward LM
 import testing ;
-#run BackwardTest.cpp ..//moses LM ../../lm//kenlm /top//boost_unit_test_framework : : backward.arpa ;
+run BackwardTest.cpp ..//moses LM ../../lm//kenlm /top//boost_unit_test_framework : : backward.arpa ;