diff --git a/testsuite/tests/letrec/backreferences.result b/testsuite/tests/letrec/backreferences.reference similarity index 100% rename from testsuite/tests/letrec/backreferences.result rename to testsuite/tests/letrec/backreferences.reference diff --git a/testsuite/tests/letrec/class_1.result b/testsuite/tests/letrec/class_1.reference similarity index 100% rename from testsuite/tests/letrec/class_1.result rename to testsuite/tests/letrec/class_1.reference diff --git a/testsuite/tests/letrec/float_block_2.result b/testsuite/tests/letrec/float_block_2.reference similarity index 100% rename from testsuite/tests/letrec/float_block_2.result rename to testsuite/tests/letrec/float_block_2.reference diff --git a/testsuite/tests/letrec/lists.result b/testsuite/tests/letrec/lists.reference similarity index 100% rename from testsuite/tests/letrec/lists.result rename to testsuite/tests/letrec/lists.reference diff --git a/testsuite/tests/letrec/mixing_value_closures_1.result b/testsuite/tests/letrec/mixing_value_closures_1.reference similarity index 100% rename from testsuite/tests/letrec/mixing_value_closures_1.result rename to testsuite/tests/letrec/mixing_value_closures_1.reference diff --git a/testsuite/tests/letrec/mixing_value_closures_2.result b/testsuite/tests/letrec/mixing_value_closures_2.reference similarity index 100% rename from testsuite/tests/letrec/mixing_value_closures_2.result rename to testsuite/tests/letrec/mixing_value_closures_2.reference diff --git a/testsuite/tests/letrec/mutual_functions.result b/testsuite/tests/letrec/mutual_functions.reference similarity index 100% rename from testsuite/tests/letrec/mutual_functions.result rename to testsuite/tests/letrec/mutual_functions.reference