diff --git a/arch/blackfin/kernel/cplb-mpu/cplbinit.c b/arch/blackfin/kernel/cplb-mpu/cplbinit.c
index e2e2b5079f5b..dc6e8a7a8bda 100644
--- a/arch/blackfin/kernel/cplb-mpu/cplbinit.c
+++ b/arch/blackfin/kernel/cplb-mpu/cplbinit.c
@@ -26,6 +26,10 @@
 #include <asm/cplb.h>
 #include <asm/cplbinit.h>
 
+#if ANOMALY_05000263
+# error the MPU will not function safely while Anomaly 05000263 applies
+#endif
+
 struct cplb_entry icplb_tbl[MAX_CPLBS];
 struct cplb_entry dcplb_tbl[MAX_CPLBS];