diff --git a/unittest/force-styles/tests/atomic-pair-lj_relres.yaml b/unittest/force-styles/tests/atomic-pair-lj_relres.yaml
index 99a83e0c8d..704bb46785 100644
--- a/unittest/force-styles/tests/atomic-pair-lj_relres.yaml
+++ b/unittest/force-styles/tests/atomic-pair-lj_relres.yaml
@@ -3,7 +3,7 @@ lammps_version: 10 Feb 2021
 date_generated: Sun Feb 28 23:32:03 2021
 epsilon: 5e-13
 prerequisites: ! |
-  pair born
+  pair lj/relres
 pre_commands: ! ""
 post_commands: ! ""
 input_file: in.metal
diff --git a/unittest/formats/test_dump_custom.cpp b/unittest/formats/test_dump_custom.cpp
index 772acaacb6..90876dcb2d 100644
--- a/unittest/formats/test_dump_custom.cpp
+++ b/unittest/formats/test_dump_custom.cpp
@@ -143,6 +143,8 @@ TEST_F(DumpCustomTest, compute_run0)
 
 TEST_F(DumpCustomTest, fix_run0)
 {
+    if (!info->has_style("fix", "numdiff")) GTEST_SKIP();
+
     BEGIN_HIDE_OUTPUT();
     command("fix numdiff all numdiff 1 0.0001");
     END_HIDE_OUTPUT();