diff --git a/tests/test27cells.c b/tests/test27cells.c
index 9d78c57a24ed9da407876e4021ca13597a6a4a2e..c715d3d848eaa03c0c9596518a7009b6428af801 100644
--- a/tests/test27cells.c
+++ b/tests/test27cells.c
@@ -72,6 +72,11 @@
 #define DOPAIR1_NAME "runner_dopair1_density_auto_vec"
 #endif
 
+#if defined(DOPAIR1_NOSORT_JSW)
+#define DOPAIR1 runner_dopair1_nosort_density
+#define DOPAIR1_NAME "runner_dopair1_nosort_density"
+#endif
+
 #ifndef DOPAIR1
 #define DOPAIR1 runner_dopair1_density
 #define DOPAIR1_NAME "runner_dopair1_density"
@@ -330,6 +335,7 @@ int check_results(struct part *serial_parts, struct part *vec_parts, int count,
 
 /* Just a forward declaration... */
 void runner_dopair1_density(struct runner *r, struct cell *ci, struct cell *cj);
+void runner_dopair1_nosort_density(struct runner *r, struct cell *ci, struct cell *cj);
 void runner_dopair1_density_vec(struct runner *r, struct cell *ci, struct cell *cj);
 void runner_dopair1_density_vec_1(struct runner *r, struct cell *ci, struct cell *cj);
 void runner_dopair1_density_vec_2(struct runner *r, struct cell *ci, struct cell *cj);