diff --git a/cpu/ppc4xx/cache.S b/cpu/ppc4xx/cache.S
index 5124dec77f4c2af89e0aea9eb390ece9beaa3ef7..ceb3ec0d3401f3112aaa0900b249eb527d81db74 100644
--- a/cpu/ppc4xx/cache.S
+++ b/cpu/ppc4xx/cache.S
@@ -166,9 +166,11 @@ _GLOBAL(invalidate_dcache)
 #ifdef CONFIG_440
 
        .globl  dcache_disable
+       .globl  dcache_enable
        .globl  icache_disable
        .globl  icache_enable
 dcache_disable:
+dcache_enable:
 icache_disable:
 icache_enable:
 	blr