diff --git a/unittest/formats/CMakeLists.txt b/unittest/formats/CMakeLists.txt
index 5122dd7ca3..f1408de4d7 100644
--- a/unittest/formats/CMakeLists.txt
+++ b/unittest/formats/CMakeLists.txt
@@ -64,19 +64,19 @@ if(PKG_COMPRESS AND GZIP_FOUND)
     target_link_libraries(test_dump_xyz_compressed PRIVATE lammps GTest::GMock)
 
     add_test(NAME DumpAtomGZ COMMAND test_dump_atom_compressed gz)
-    set_tests_properties(DumpAtomGZ PROPERTIES ENVIRONMENT "LAMMPS_POTENTIALS=${LAMMPS_POTENTIALS_DIR};COMPRESS_BINARY=${GZIP_BINARY}")
+    set_tests_properties(DumpAtomGZ PROPERTIES ENVIRONMENT "LAMMPS_POTENTIALS=${LAMMPS_POTENTIALS_DIR};COMPRESS_BINARY=${GZIP_EXECUTABLE}")
 
     add_test(NAME DumpCustomGZ COMMAND test_dump_custom_compressed gz)
-    set_tests_properties(DumpCustomGZ PROPERTIES ENVIRONMENT "LAMMPS_POTENTIALS=${LAMMPS_POTENTIALS_DIR};COMPRESS_BINARY=${GZIP_BINARY}")
+    set_tests_properties(DumpCustomGZ PROPERTIES ENVIRONMENT "LAMMPS_POTENTIALS=${LAMMPS_POTENTIALS_DIR};COMPRESS_BINARY=${GZIP_EXECUTABLE}")
 
     add_test(NAME DumpCfgGZ COMMAND test_dump_cfg_compressed gz)
-    set_tests_properties(DumpCfgGZ PROPERTIES ENVIRONMENT "LAMMPS_POTENTIALS=${LAMMPS_POTENTIALS_DIR};COMPRESS_BINARY=${GZIP_BINARY}")
+    set_tests_properties(DumpCfgGZ PROPERTIES ENVIRONMENT "LAMMPS_POTENTIALS=${LAMMPS_POTENTIALS_DIR};COMPRESS_BINARY=${GZIP_EXECUTABLE}")
 
     add_test(NAME DumpLocalGZ COMMAND test_dump_local_compressed gz)
-    set_tests_properties(DumpLocalGZ PROPERTIES ENVIRONMENT "LAMMPS_POTENTIALS=${LAMMPS_POTENTIALS_DIR};COMPRESS_BINARY=${GZIP_BINARY}")
+    set_tests_properties(DumpLocalGZ PROPERTIES ENVIRONMENT "LAMMPS_POTENTIALS=${LAMMPS_POTENTIALS_DIR};COMPRESS_BINARY=${GZIP_EXECUTABLE}")
 
     add_test(NAME DumpXYZGZ COMMAND test_dump_xyz_compressed gz)
-    set_tests_properties(DumpXYZGZ PROPERTIES ENVIRONMENT "LAMMPS_POTENTIALS=${LAMMPS_POTENTIALS_DIR};COMPRESS_BINARY=${GZIP_BINARY}")
+    set_tests_properties(DumpXYZGZ PROPERTIES ENVIRONMENT "LAMMPS_POTENTIALS=${LAMMPS_POTENTIALS_DIR};COMPRESS_BINARY=${GZIP_EXECUTABLE}")
 
     find_package(PkgConfig REQUIRED)
     pkg_check_modules(Zstd IMPORTED_TARGET libzstd>=1.4)