1 files changed, 2 insertions, 2 deletions

diff --git a/commit.h b/commit.h
index 5467786c7b..33c66b2177 100644
--- a/commit.h
+++ b/commit.h
@@ -11,8 +11,8 @@
 #include "commit-slab.h"
 
 #define COMMIT_NOT_FROM_GRAPH 0xFFFFFFFF
-#define GENERATION_NUMBER_INFINITY 0xFFFFFFFF
-#define GENERATION_NUMBER_MAX 0x3FFFFFFF
+#define GENERATION_NUMBER_INFINITY ((1ULL << 63) - 1)
+#define GENERATION_NUMBER_V1_MAX 0x3FFFFFFF
 #define GENERATION_NUMBER_ZERO 0
 
 struct commit_list {