diff --git a/drivers/fuel_gauge/sbs_gauge/emul_sbs_gauge.c b/drivers/fuel_gauge/sbs_gauge/emul_sbs_gauge.c
index 64668d54307..160552edeff 100644
--- a/drivers/fuel_gauge/sbs_gauge/emul_sbs_gauge.c
+++ b/drivers/fuel_gauge/sbs_gauge/emul_sbs_gauge.c
@@ -342,9 +342,6 @@ static void emul_sbs_gauge_reset_rule_after(const struct ztest_unit_test *test,
 	DT_INST_FOREACH_STATUS_OKAY(SBS_GAUGE_EMUL_RESET_RULE_BEFORE)
 }
 ZTEST_RULE(emul_sbs_gauge_reset, NULL, emul_sbs_gauge_reset_rule_after);
-#else /* !CONFIG_ZTEST */
-/* Stub ZTEST_DMEM in case emulator is not used in a testing environment. */
-#define ZTEST_DMEM
 #endif /* CONFIG_ZTEST */
 
 /**