diff --git a/arch/powerpc/mm/mmu_context_nohash.c b/arch/powerpc/mm/mmu_context_nohash.c
index ac4cb04..a70e311 100644
--- a/arch/powerpc/mm/mmu_context_nohash.c
+++ b/arch/powerpc/mm/mmu_context_nohash.c
@@ -380,7 +380,7 @@
 #endif
 
 	printk(KERN_INFO
-	       "MMU: Allocated %d bytes of context maps for %d contexts\n",
+	       "MMU: Allocated %zu bytes of context maps for %d contexts\n",
 	       2 * CTX_MAP_SIZE + (sizeof(void *) * (last_context + 1)),
 	       last_context - first_context + 1);