diff --git a/.testing/Makefile b/.testing/Makefile
index daac0802f2..bc03358649 100644
--- a/.testing/Makefile
+++ b/.testing/Makefile
@@ -310,7 +310,7 @@ $(eval $(call STAT_RULE,symmetric,symmetric,$(REPORT_COVERAGE),,,1))
 $(eval $(call STAT_RULE,asymmetric,asymmetric,,,,1))
 $(eval $(call STAT_RULE,target,target,,,,1))
 $(eval $(call STAT_RULE,repro,repro,,,,1))
-$(eval $(call STAT_RULE,openmp,openmp,,,,1))
+$(eval $(call STAT_RULE,openmp,openmp,,,GOMP_CPU_AFFINITY=0,1))
 $(eval $(call STAT_RULE,layout,symmetric,,LAYOUT=2$(,)1,,2))
 $(eval $(call STAT_RULE,rotate,symmetric,,ROTATE_INDEX=True\nINDEX_TURNS=1,,1))
 $(eval $(call STAT_RULE,nan,symmetric,,,MALLOC_PERTURB_=256,1))