diff --git a/unittest/force-styles/CMakeLists.txt b/unittest/force-styles/CMakeLists.txt
index 934c110b1f..85546c1510 100644
--- a/unittest/force-styles/CMakeLists.txt
+++ b/unittest/force-styles/CMakeLists.txt
@@ -75,6 +75,7 @@ else()
   set(FORCE_TEST_ENVIRONMENT PYTHONPATH=${TEST_INPUT_FOLDER}:$ENV{PYTHONPATH})
 endif()
 list(APPEND FORCE_TEST_ENVIRONMENT "PYTHONUNBUFFERED=1")
+list(APPEND FORCE_TEST_ENVIRONMENT "OMP_PROC_BIND=false")
 list(APPEND FORCE_TEST_ENVIRONMENT "LAMMPS_POTENTIALS=${LAMMPS_POTENTIALS_DIR}")
 get_property(BUILD_IS_MULTI_CONFIG GLOBAL PROPERTY GENERATOR_IS_MULTI_CONFIG)
 if(BUILD_IS_MULTI_CONFIG)