diff --git a/arch/ppc/platforms/4xx/Kconfig b/arch/ppc/platforms/4xx/Kconfig
index 8772ae11a951802f615561cecb554ee4e783ea99..76f4476cab44b7803b7a481fb9785a2d78b73027 100644
--- a/arch/ppc/platforms/4xx/Kconfig
+++ b/arch/ppc/platforms/4xx/Kconfig
@@ -142,13 +142,13 @@ config IBM440EP_ERR42
 # All 405-based cores up until the 405GPR and 405EP have this errata.
 config IBM405_ERR77
 	bool
-	depends on 40x && !403GCX && !405GPR
+	depends on 40x && !403GCX && !405GPR && !405EP
 	default y
 
 # All 40x-based cores, up until the 405GPR and 405EP have this errata.
 config IBM405_ERR51
 	bool
-	depends on 40x && !405GPR
+	depends on 40x && !405GPR && !405EP
 	default y
 
 config BOOKE