diff --git a/reactos/include/ddk/ntstatus.h b/reactos/include/ddk/ntstatus.h
index 7b00856c39f..688f996d3ff 100644
--- a/reactos/include/ddk/ntstatus.h
+++ b/reactos/include/ddk/ntstatus.h
@@ -873,6 +873,7 @@ extern "C" {
 #define STATUS_PKINIT_CLIENT_FAILURE ((NTSTATUS)0xC000038CL)
 #define STATUS_SMARTCARD_CERT_EXPIRED ((NTSTATUS)0xC000038DL)
 #define STATUS_DRIVER_FAILED_PRIOR_UNLOAD ((NTSTATUS)0xC000038EL)
+#define STATUS_ASSERTION_FAILURE ((NTSTATUS)0xC0000420L)
 #define STATUS_CALLBACK_POP_STACK ((NTSTATUS)0xC0000423L)
 #define STATUS_WOW_ASSERTION ((NTSTATUS)0xC0009898L)
 #define RPC_NT_INVALID_STRING_BINDING ((NTSTATUS)0xC0020001L)
diff --git a/reactos/include/psdk/ntstatus.h b/reactos/include/psdk/ntstatus.h
index 3a4811d44e8..6cbdac3bf7e 100644
--- a/reactos/include/psdk/ntstatus.h
+++ b/reactos/include/psdk/ntstatus.h
@@ -922,6 +922,7 @@
 #define STATUS_AUTHENTICATION_FIREWALL_FAILED ((NTSTATUS)0xC0000413)
 #define STATUS_VDM_DISALLOWED            ((NTSTATUS)0xC0000414)
 #define STATUS_HUNG_DISPLAY_DRIVER_THREAD ((NTSTATUS)0xC0000415)
+#define STATUS_ASSERTION_FAILURE         ((NTSTATUS)0xC0000420L)
 #define STATUS_CALLBACK_POP_STACK        ((NTSTATUS)0xC0000423)
 #define STATUS_WOW_ASSERTION             ((NTSTATUS)0xC0009898)