diff --git a/post/tests.c b/post/tests.c
index 55da927..02506c0 100644
--- a/post/tests.c
+++ b/post/tests.c
@@ -68,7 +68,7 @@
 	"Watchdog timer test",
 	"watchdog",
 	"This test checks the watchdog timer.",
-	POST_RAM | POST_POWERON | POST_POWERFAIL | POST_MANUAL | POST_REBOOT,
+	POST_RAM | POST_POWERON | POST_SLOWTEST | POST_MANUAL | POST_REBOOT,
 	&watchdog_post_test,
 	NULL,
 	NULL,
@@ -92,7 +92,7 @@
 	"RTC test",
 	"rtc",
 	"This test verifies the RTC operation.",
-	POST_RAM | POST_POWERFAIL | POST_MANUAL,
+	POST_RAM | POST_SLOWTEST | POST_MANUAL,
 	&rtc_post_test,
 	NULL,
 	NULL,
@@ -104,7 +104,7 @@
 	"Memory test",
 	"memory",
 	"This test checks RAM.",
-	POST_ROM | POST_POWERON | POST_POWERFAIL | POST_PREREL,
+	POST_ROM | POST_POWERON | POST_SLOWTEST | POST_PREREL,
 	&memory_post_test,
 	NULL,
 	NULL,
@@ -129,7 +129,7 @@
 	"UART test",
 	"uart",
 	"This test verifies the UART operation.",
-	POST_RAM | POST_POWERFAIL | POST_MANUAL,
+	POST_RAM | POST_SLOWTEST | POST_MANUAL,
 	&uart_post_test,
 	NULL,
 	NULL,