diff --git a/git-compat-util.h b/git-compat-util.h
index 9a64998..b904af3 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -844,6 +844,7 @@ extern FILE *fopen_or_warn(const char *path, const char *mode);
 #define FREE_AND_NULL(p) do { free(p); (p) = NULL; } while (0)
 
 #define ALLOC_ARRAY(x, alloc) (x) = xmalloc(st_mult(sizeof(*(x)), (alloc)))
+#define CALLOC_ARRAY(x, alloc) (x) = xcalloc((alloc), sizeof(*(x)));
 #define REALLOC_ARRAY(x, alloc) (x) = xrealloc((x), st_mult(sizeof(*(x)), (alloc)))
 
 #define COPY_ARRAY(dst, src, n) copy_array((dst), (src), (n), sizeof(*(dst)) + \