diff --git a/builtin/pack-objects.c b/builtin/pack-objects.c
index 9cfc8801f9..193bb0b0df 100644
--- a/builtin/pack-objects.c
+++ b/builtin/pack-objects.c
@@ -4256,8 +4256,8 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
 				N_("ignore this pack")),
 		OPT_INTEGER(0, "compression", &pack_compression_level,
 			    N_("pack compression level")),
-		OPT_SET_INT(0, "keep-true-parents", &grafts_replace_parents,
-			    N_("do not hide commits by grafts"), 0),
+		OPT_BOOL(0, "keep-true-parents", &grafts_keep_true_parents,
+			 N_("do not hide commits by grafts")),
 		OPT_BOOL(0, "use-bitmap-index", &use_bitmap_index,
 			 N_("use a bitmap index if available to speed up counting objects")),
 		OPT_SET_INT(0, "write-bitmap-index", &write_bitmap_index,
diff --git a/commit.c b/commit.c
index 0fb9316931..2fbbf24576 100644
--- a/commit.c
+++ b/commit.c
@@ -516,7 +516,7 @@ int parse_commit_buffer(struct repository *r, struct commit *item, const void *b
 		 * The clone is shallow if nr_parent < 0, and we must
 		 * not traverse its real parents even when we unhide them.
 		 */
-		if (graft && (graft->nr_parent < 0 || grafts_replace_parents))
+		if (graft && (graft->nr_parent < 0 || !grafts_keep_true_parents))
 			continue;
 		new_parent = lookup_commit(r, &parent);
 		if (!new_parent)
diff --git a/environment.c b/environment.c
index 28d18eaca8..fb113df8d0 100644
--- a/environment.c
+++ b/environment.c
@@ -75,7 +75,7 @@ enum push_default_type push_default = PUSH_DEFAULT_UNSPECIFIED;
 #endif
 enum object_creation_mode object_creation_mode = OBJECT_CREATION_MODE;
 char *notes_ref_name;
-int grafts_replace_parents = 1;
+int grafts_keep_true_parents;
 int core_apply_sparse_checkout;
 int core_sparse_checkout_cone;
 int sparse_expect_files_outside_of_patterns;
diff --git a/environment.h b/environment.h
index 30cb7e0fa3..96bc95bbeb 100644
--- a/environment.h
+++ b/environment.h
@@ -194,7 +194,7 @@ extern enum object_creation_mode object_creation_mode;
 
 extern char *notes_ref_name;
 
-extern int grafts_replace_parents;
+extern int grafts_keep_true_parents;
 
 extern int repository_format_precious_objects;
 extern int repository_format_worktree_config;