diff --git a/kvmdump.c b/kvmdump.c
index 4db96bd..e515bf0 100644
--- a/kvmdump.c
+++ b/kvmdump.c
@@ -297,7 +297,7 @@ kvmdump_memory_dump(FILE *ofp)
 				(ulonglong)kvm->page_cache[i].paddr);
 	}
 
-	fprintf(ofp, "      cpu_devices: %d\n", kvm->cpu_devices);
+	fprintf(ofp, "      cpu_devices: %ld\n", kvm->cpu_devices);
 	fprintf(ofp, "           iohole: %llx (%llx - %llx)\n", 
 		(ulonglong)kvm->iohole, 0x100000000ULL - kvm->iohole,
 		0x100000000ULL);
diff --git a/kvmdump.h b/kvmdump.h
index 07e047b..2e408ae 100644
--- a/kvmdump.h
+++ b/kvmdump.h
@@ -64,7 +64,7 @@ struct kvmdump_data {
 	ulong compresses;
 	uint64_t kvbase;
 	ulong *debug;
-	uint32_t cpu_devices;
+	uint64_t cpu_devices;
 	struct register_set *registers;
 	uint64_t iohole;
 };