1 files changed, 5 insertions, 2 deletions
diff --git a/cache.h b/cache.h
index cec19ba448..ed83d92c5a 100644
--- a/cache.h
+++ b/cache.h
@@ -234,8 +234,11 @@ extern void verify_non_filename(const char *prefix, const char *name);
  */
 #define ALLOC_GROW(x, nr, alloc) \
 	do { \
-		if ((nr) >= alloc) { \
-			alloc = alloc_nr(alloc); \
+		if ((nr) > alloc) { \
+			if (alloc_nr(alloc) < (nr)) \
+				alloc = (nr); \
+			else \
+				alloc = alloc_nr(alloc); \
 			x = xrealloc((x), alloc * sizeof(*(x))); \
 		} \
 	} while(0)