diff --git a/tests/MergeScaleTest.cpp b/tests/MergeScaleTest.cpp
index 71d76c38..e8fb78f0 100644
--- a/tests/MergeScaleTest.cpp
+++ b/tests/MergeScaleTest.cpp
@@ -66,7 +66,7 @@ TEST_CASE("HKLKey_SG96_NoMergeFriedel") {
 
 TEST_CASE("HKLKey_pack_friedel") {
     HKLKeyGenerator hkl_key_gen(false, *gemmi::find_spacegroup_by_number(1));
-    CHECK(hkl_key_gen(-1, -2, -3).pack() == hkl_key_gen(1,2,3).pack());
+    CHECK(hkl_key_gen(-1, -2, -3).pack() != hkl_key_gen(1,2,3).pack());
     CHECK(hkl_key_gen(-1,-2,-3).pack() == hkl_key_gen(-1,-2,-3).pack());
     CHECK(hkl_key_gen(-1,-2,-3).pack() != hkl_key_gen(1,-2,-3).pack());
 }
@@ -75,5 +75,5 @@ TEST_CASE("HKLKey_pack_no_friedel") {
     HKLKeyGenerator hkl_key_gen(true, *gemmi::find_spacegroup_by_number(1));
     CHECK(hkl_key_gen(-1, -2, -3).pack() == hkl_key_gen(1,2,3).pack());
     CHECK(hkl_key_gen(-1,-2,-3).pack() == hkl_key_gen(-1,-2,-3).pack());
-    CHECK(hkl_key_gen(-1,-2,-3).pack() == hkl_key_gen(1,-2,-3).pack());
+    CHECK(hkl_key_gen(-1,-2,-3).pack() != hkl_key_gen(1,-2,-3).pack());
 }